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How to Use Windows XP File Extension

    File Extension

    Here is a list of file extensions. This list is very long, so if you need to find one file extension, press Ctrl + F together to search for a specific file extension on this page.

    .#24    Printer data file for 24 pin matrix printer (LocoScript)
    .#ib    Printer data file (LocoScript)
    .#sc    Printer data file (LocoScript)
    .#st    Standard mode printer definitions (LocoScript)
    .$#! Cryptext
    .$$$    Temporary file
    .000 Compressed harddisk data (DoubleSpace)
    .001 Fax (many)
    .075 75x75 dpi display font (Ventura Publisher)
    .085 85x85 dpi display font (Ventura Publisher)
    .091 91x91 dpi display font (Ventura Publisher)
    .096 96x96 dpi display font (Ventura Publisher)
    .0b Printer font with lineDraw extended character set (PageMaker)
    .1 Roff/nroff/troff/groff source for manual page (
    .113 Iomega Backup file
    .123 Lotus file
    .15u Printer font with PI font set (PageMaker)
    .1st Usually README.1ST text
    .2d 2d Drawings (VersaCad)
    .2dl 2d Libraries (VersaCad)
    .3d 3d Drawings (VersaCad)
    .3dl 3d Libraries (VersaCad)
    .301 Fax (Super FAX 2000 - Fax-Mail 96))
    .386 Intel 80386 processor driver (Windows 3.x)
    .3ds Graphics (3D Studio)
    .3fx Effect (CorelChart)
    .3gp Multimedia File
    .3gr Data file (Windows Video Grabber)
    .3ko NGRAIN Mobilizer
    .3t4 Binary file converter to ASCII (Util3)
    .411 Sony Mavica Data file
    .4c$ Datafile (4Cast/2)
    .4sw 4dos Swap File
    .4th Forth source code file (ForthCMP - LMI Forth)
    .5cr Preconfigured drivers for System 5cr and System 5cr Plus 
    .669 Music (8 channels) (The 669 Composer)
    .6cm Music (6 Channel Module) (Triton FastTracker)
    .8 A86 assembler source code file
    .8cm Music (8 Channel Module) (Triton FastTracker)
    .8m Printer font with Math 8 extended character set (PageMaker)
    .8u Printer font with Roman 8 extended character set (PageMaker)
    .a Ada source code file
    .a Library (unix)
    .a11 Graphics AIIM image file
    .a2b A2B Player Playlist 
    .a3d Amapi 3D Modeling file
    .a3m Unpackaged Authorware MacIntosh file
    .a3w Unpackaged Authorware Windows file
    .a4a Authorware 4.x Library 
    .a4m Unpackaged Authorware MacIntosh file
    .a4p Authorware file packaged without runtime
    .a4w Unpackaged Authorware Windows file
    .a5w Unpackaged Authorware Windows file
    .aab Macromedia Authorware Binary
    .aam Authorware shocked file
    .ab2 Parson's Address Book
    .ab6 Datafile (ABStat)
    .ab8 Datafile (ABStat)
    .aba Palm Address Book file
    .abc ABC FLOWCHARTER 1.x flowchart
     ABC2K Audio/Video Controller Software
    .abd AmBiz Bonus Calculator data file
     Adventure Builder database
    .abf Adobe Binary Font
    .abi ABI CODER Encryption software
    .abk Automatic backup file (CorelDRAW)
    .abm ImagePals Photo Album Document
     Montage Photo Album file
     PhotoPlus Album file
    .abs Abstracts (info file)
     Data file (Abscissa)
     MPEG audio sound file
    .abw AbiWord document
    .abx WordPerfect Address Book file
    .aby AOL file (located in AOL program directory)
    .ac3 AC3 Audio File Format 
    .aca Microsoft Agent Character file
     Project (Project Manager Workbench)
    .acb Graphics (ACMB)
    .acc Program (DR-DOS - ViewMax) (GEM / resident)
    .acd Sonic Foundry Acid music file
    .ace Ace Archiver compressed file
    .acf Microsoft Agent Character file
     Adobe Photoshop Custom Filter 
    .aci ACI Development Appraisal
    .acl Document file (Audit Command Language)
     ArborText Command Language 
    .acm Audio Compression Manager Driver
     Photoshop command button
     Windows system file
     ACBM image file  
      Interplay compressed Sound file 
    .acs MS Agent Character file
    .act Actor source code file
     Foxdoc Action Diagrams (FoxPro)
     Presentation (Action!)
    .acv OS/2 Audio Drivers
     Photoshop Saved Curve
    .ad Screen saver data (AfterDark)
    .ada Ada source code file
    .adb Ada Package Body
    .adc Bitmap graphics (16 colors) (Scanstudio)
    .adf Adapter Description file
     Admin Config file
     Amiga Disk File 
     Dog Creek QC Mask file
    .adi Graphics (AutoCAD)
    .adl Mca adapter description library (QEMM)
    .adm After Dark Screen Saver Module   
     Windows Policy Template
     Addict Compiled Dictionary
     Advantage Data Server Database Memo file
    .adn Add-in (Lotus 1-2-3)
    .ado Photoshop Duotone Options
     Stata Program
    .adp FaxWorks Modem setup file
     Astound Dynamite file
     MS Access Project
     AOLserver Dynamic Page file
    .adr Address Book
     Address Plus Database
     After Dark Random Screen Saver Module
     Opera Web Browser Bookmark file
     Smart Address Address Book
    .ads Ada Package Specification
    .adt Datafile for cardfile application (HP NewWave)
     Fax (AdTech)
    .adx Document (Archetype Designer)
    .adz GZ-Packed Amiga Disk file
    .aeh iPer Advanced Embedded Hypertext
    .aex PGP Armored Extracted Public Encryption Key
    .af2 Flowchart (ABC FlowCharter 2.0)
    .aff AnyForm Form file
    .afi Truevision bitmap graphics
    .afl Font file (for Allways) (Lotus 1-2-3)
    .afm Type 1 font metric ASCII data for font installer (ATM - many)
     Datafile for cardfile application (HP NewWave)
    .aft AnyForm template file
    .agp Aspen Graphics Pages
    .agw Aspen Graphics Windows
    .ai Vector graphics (Adobe Illustrator)
    .aiff Audio interchange file format
    .ain Compressed file archive created by AIN
    .aio APL file transfer format file
    .air Automatic Image 
    .ais Array of Intensity Samples graphics (Xerox) .aix Datafile for cardfile application (HP NewWave) .alb JASC Image Commander Album Photo Soap2 file Steinberg Cubase or VST Backup Song file .albm webAlbum Photo Album HP Photosmart Photo Printing Album .all Format file for working pages (Always) General printer information (WordPerfect for Win) Symbol and font files (Arts & Letters) .als Alias Image Calmira Shortcut file .alt Menu file (WordPerfect Library) .alz ALZip Compressed file .amf Music (Advanced Module Format) .amg Compressed file archive created by AMGC System image file (Actor) .amp Photoshop Arbitrary Map Settings .amr Adaptive Multi-Rate ACELP Codec Above audio file extension .anc Animation file format (MorphInk) .ani Animation (Presidio - many) .anm Animation (Deluxe Paint Animator) .ann Help Annotations (Windows 3.x) .ans Ansi graphics (character animation) Ascii text ANSI character set (NewWave Write) .aos Add-On Software (Nokia 9000) .ap Compressed Amiga file archive created by WHAP Datafile (Datalex EntryPoint 90) Artwork Systems Program (ArtPro) .apc Printer driver (Lotus 1-2-3) .apd Printer driver (Lotus 1-2-3) .ape Music format (different players) .apf Printer driver (Lotus 1-2-3) .api Passed parameter file (1st Reader) Printer driver (Lotus 1-2-3) .apl APL work space format file .apm ArcPad 6 file .app Add-in application file (Symphony) Application object file (dBASE Application Generator) Executable application file (DR-DOS - NeXTstep - Atari) Generated application (FoxPro) .apr Employee performance review (Employee Appraiser) .aps MS Visual C++ file ArcPad 5 Symbology file .apx Appexpert database file (Borland C++ 4.5) .arc Compressed file archive created by ARC (arc602.exe/pk361.exe) Compressed file archive created by SQUASH (squash.arc) .arf Automatic Response file .arg AutoCAD Profile Export file .ari Compressed file archive created by ARI .arj Compressed file archive created by ARJ (arj241.exe) .arl AOL Organizer File .ark Arc file archive created by CP/M port of ARC file archiver Compressed file archive created by QUARK .arr Arrangement (Atari Cubase) .ars Adobe After Effects Render .art Graphics (scrapbook) (Art Import) Raster graphics (First Publisher) .arv Arsiv File AutoRoute User Information .arx Compressed file archive created by ARX .asa MS Visual InterDev file Active Server Document .asc Ascii text file Transport armor file (PGP) .ascx Microsoft ASP.NET user control file .asd Autosave file (Word for Windows) Presentation (Astound) Screen driver (Lotus 1-2-3) .asf Datafile (STATGRAPHICS) Screen font (Lotus 1-2-3) .ash Assembly language header file (TASM 3.0) .asi Assembler include file (Turbo C - Borland C++) .asl Adobe Photoshop Layer file .asm Assembly source code file Pro/Engineer Assembly file .asmx Microsoft .NET Web Service file .aso Assembler object (object orientated) file (Turbo Assembler) .asp Microsoft Active Server Page Aspect source code file (Procomm Plus) Association of Shareware Professionals OMBUDSMN.ASP notice .aspx Microsoft ASP.NET file .asr Ms Automap Route Photoshop Scratch Area .asx Microsoft Windows Media Active Stream Redirector file .at2 Auto template (Aldus Persuasion 2.0) .atm Adobe Type Manager data/info .atn Adobe Photoshop Action file .atr Lightscape Material Library .att AT&T Group 4 Bitmap .aty 3D Topicscape (Exported association type) .au Sound (audio) file (SUN Microsystems) .au3 Autoit3 script file .aud Audio file .aut AutoIt Script PocketWear Car Lease Kit vehicle data file TLG Workplace CD search file Xitami Webserver Admin Password file GPSMan-autoMapic file Signwave Auto-Illustrator file Descent Manager Mission file Authentication file (various) Interactive Pictures iPIX Format .aux Auxillary references (TeX/LaTeX) Auxiliary dictionary (ChiWriter) .ava Publication (Avagio) .avb Inoculan Anti-Virus virus infected file Microsoft Chat character file .avd Avery Label Pro Data file .avi Audio Video Interleaved animation file (Video for Windows) .avs Animation file Application Visualization System Format Stardent AVS-X image Winamp Advanced Visualization Studio file .avx ArcView file .aw Text file (HP AdvanceWrite) .awb Lavasoft Ad-aware backup file .awd AWD MS Fax Award BIOS file AWK Language Source Code file .awe Adobe Acrobat Bookmark XML file .awk Awk script/program .awm Movie (Animation Works) .awr Telsis Digital Audio file .aws Data (STATGRAPHICS) .ax DirectShow Filter .axd Avery Label Pro Re-Index file Actrix Technical file .axe Paradigm C++ Integrated Debugger file ChordMaster MS Autoroute export file .axg MS Autoroute Trip file .axl ArcIMS XML Project file .axs AMX Axcess control system file format HTML Active X script .axt ZenWorks snAPPshot ASCII Application Object template Photoshop Replace Color/Color Range .axx axxess files used as backups of Inter-Tel databases .azz AZZ Cardfile .b Batch list (APPLAUSE) .b&w Black and white graphics (atari - mac) .b~k backup file Mono binary screen image (1st Reader) .b16 PCO Graphic file .b1n Both mono and color binary screen image (1st Reader) .b1s Booksmith .b30 Printer font (JLaser - Cordata) (Ventura Publisher) .b3d 3D Builder file .b8 Raw graphics (one byte per pixel) plane two (PicLab) .b_w Black and white graphics (atari - mac) .bad Bad file (Oracle) .bag PMMail Mail Index file OS/2 Netfinity Manager Sysinfo file AOL Instant Messenger Buddy list .bak Backup file .bal Music score (Ballade) .ban Sierra Print Artist Banner .bar Horizontal bar menu object file (dBASE Application Generator) .bas Basic source code file .bat Batch file (DOS) .bb Database backup (Papyrus) .bbl Bibliographic reference (TeX/BibTeX) .bbm Brush (Deluxe Paint) .bbs Bulletin Board System announce or text info file .bcf ConfigSafe Snapshot index The Sims (Maxis) File .bch Batch process object file (dBASE Application Generator) Datafile (Datalex EntryPoint 90) .bck Backup .bcm MS Works Communications file .bcn Business Card Pro Design
    .bco Outline font description (Bitstream) .bcp Borland C++ makefile .bct Business Card Designer template
    .bcw Environment settings (Borland C++ 4.5) .bde Borland Database Engine .bdf Bitmap Distribution Format font file (X11) Datafile (Egret) .bdr Border (MS Publisher) .bez Outline font description (Bitstream) .bf2 Bradford 2 font .bfm Font metrics (unix/Frame) .bfx Fax (BitFax) .bga Bitmap graphics .bgt Quicken 2002 Internet Common File
    .bgi Borland Graphics Interface device driver .bgl Flight Simulator scenery file .bgt Quicken 2002 Internet Common File .bib Bibliography (ASCII) Database - not compatible with TeX format (Papyrus) Literature database (TeX/BibTeX) .bic Civilization III Scenario .bid BidMaker 2002 file .bif Binary Image Format b&w graphics (Image Capture board) .bik BioCharter Profile backup file Bink Game video file .bin Binary file .bio OS/2 BIOS .bit Bitmap Image Worms Armageddon Imported Map Worms World Party Imported Map .bk Faxbook (JetFax) .bk! Document backup (WordPerfect for Win) .bk1 Timed backup file for document window 1 (WordPerfect for Win) .bk2 Timed backup file for document window 2 (WordPerfect for Win) .bk3 Timed backup file for document window 3 (WordPerfect for Win) .bk4 Timed backup file for document window 4 (WordPerfect for Win) .bk5 Timed backup file for document window 5 (WordPerfect for Win) .bk6 Timed backup file for document window 6 (WordPerfect for Win) .bk7 Timed backup file for document window 7 (WordPerfect for Win) .bk8 Timed backup file for document window 8 (WordPerfect for Win) .bk9 Timed backup file for document window 9 (WordPerfect for Win) .bkf Microsoft Backup file .bkg Background file UWXAFS Binary Format Data file .bkp Backup file (Write - TurboVidion DialogDesigner) .bkw Mirror image of font set (FontEdit) .blb DreamWorks Resource Archive .bld Bloadable picture (BASIC) .blend Blender 3D file .blk Temporary file (WordPerfect for Win) Lightscape Block Library Alias Wavefront Image VersaPro Block .blt Saved AIM Buddy List file Wordperfect for DOS file .bm Bitmap graphics .bmf Corel Image file .bmi 3ds max Executable
    .bmk Help Bookmarks (Windows 3.x) .bmp Bitmap graphics (PC Paintbrush - many) .bmx Buzz music file .bnd Typequick file .bnk Adlib instrument bank file .bob BobDown Downloading Program Bob Raytracer .bom MicroSim PCBoard Bill of Materials Orcad Schematic Capture Bill of Materials file Softshare Delta Business Object Model .boo Compressed file ASCII archive created by BOO (msbooasm.arc) .book Adobe FrameMaker Book .box Myriad Jukebox file Notes Mailbox .bpc Chart (Business Plan Toolkit) .bpl Delphi Library .bpt Bitmap fills file (CorelDRAW) .bqy BrioQuery file .br Script (Bridge) .brd Eagle Layout file .brf Braille ASCII file .brk Fax (Brooktrout Fax-Mail) .brn BornoSoft Bangla2000 (a Bengali word processor) File extension .bro Tree Professional Broadleaf Creator file .brp Tree Professional Broadleaf Creator image .brt Micrografx Picture Publisher file .brx Multimedia browsing index .bsa Compressed file archive created by BSARC .bsb MapInfo Sea Chart SWAT Sub-basin Output file .bsc Compressed Apple II file archive created by BINSCII Database (Source Browser) Pwbrmake object file (MS Fortran) .bsl BSPlayer Configuration file .bsp Half-life/TFC/CS Map Quake Map .bst BibTeX Style file .btm Batch To Memory batch file (4DOS) .bto Baytex Organix! 2001 Language Kit .btr Btrieve Database file MS Frontpage-related file .btx DB/TextWorks Database Term & Indexes .bud Quicken Backup .bug Bugs and Problems .bup Backup file .but Button definitions (Buttons!) .buy Datafile format (movie) .bv1 Overflow file below insert point in Doc 1 (WordPerfect for Win) .bv2 Overflow file below insert point in Doc 2 (WordPerfect for Win) .bv3 Overflow file below insert point in Doc 3 (WordPerfect for Win) .bv4 Overflow file below insert point in Doc 4 (WordPerfect for Win) .bv5 Overflow file below insert point in Doc 5 (WordPerfect for Win) .bv6 Overflow file below insert point in Doc 6 (WordPerfect for Win) .bv7 Overflow file below insert point in Doc 7 (WordPerfect for Win) .bv8 Overflow file below insert point in Doc 8 (WordPerfect for Win) .bv9 Overflow file below insert point in Doc 9 (WordPerfect for Win) .bwb Spreadsheet application (Visual Baler) .bwi Blindread/Blindwrite .bwr Beware (buglist) (Kermit) .bwt Blindread/Blindwrite .bxx blaxxun Contact .bz2 Bzip 2 UNIX Compressed file .c C source code file Compressed unix file archive created by COMPACT .c++ C++ source code file .c-- Source code (Sphinx C--) .c00 Print file (Ventura Publisher) .c01 Genesis 2000 .c2d WinOnCD CD Image .c4d MAXON Cinema 4D File (Graphics)
    .c60 Midtronics Battery Management Software .c86 C source code file (Computer Innovation C86) .ca Initial cache data for root domain servers (Telnet) .cab Cabinet File (Microsoft installation archive) .cad Softdesk Drafix CAD File .cac dBASE IV executable when caching on/off (see cachedb.bat) .cad Document (Drafix Windows CAD) .cag MS Clip Gallery Catalog file .cal Calendar file (Windows 3.x) Calendar Maker Pro Spreatsheet (SuperCalc) .calb Coolect Album file (Coolect Album Player; .cam Casio Camera Graphic .can Fax (Navigator Fax) .cap Caption (Ventura Publisher) Session capture file (Telix) .car AtHome Assistant file Carrara Environment NeoBook Cartoon .cas Comma-delimited ASCII File .cat Catalog (dBASE IV) .cb Clean Boot File (Microsoft)
    Brief Macro Source Code .cbc Fuzzy logic system (CubiCalc) .cbf Calendar Builder file .cbl Cobol source code file .cbm Compiled bitmap graphics (XLib) .cbp CentralBuilder Project .cbt Computer Based Training (many) .cc C++ source code file .cca CC:Mail archive file .ccb Visual Basic Animated Button Configuration .ccc Bitmap graphics (native format) (Curtain Call) .ccd CloneCd Related file Vector CAD Program file .cce Calendar Creator 2 Event file .ccf Communications configuration file (Symphony) .cch Chart (CorelChart) .ccl Communication Command Language file (Intalk) .cco Btx Graphics file (XBTX) .cct Macromedia Director Shockwave file .ccx Corel PrintHouse file .cda CD Audio Track .cdb Card database (CardScan) Main database (TCU Turbo C Utilities) .cde Honeywell Hybrid Control Designer .cdf Graphics (netcdf) .cdi Phillips Compact Disk Interactive format .cdk Document (Atari Calamus) .cdl CaseWare Working Papers Document Link SignLab Vector Graphic .cdm Visual dBASE Custom Data Module .cdp CD/Spectrum Pro .cdr Vector graphics (CorelDRAW native format) .cdt Data (CorelDraw 4.0) .cdx Compound index (FoxPro) .ce Main.ce (The FarSide Computer Calendar) .ceg Bitmap graphics (Tempra Show - Edsun Continuous Edge Graphics) .cel Graphics (Autodesk Animator - Lumena) .cf Configuration file (imake) .cfb Comptons multimedia file .cfc Macromedia Coldfusion component extension .cfg Configuration .cfl Chart (CorelFLOW) .cfm ColdFusion Markup Language (Allaire) .cfn Font data (Atari Calamus) .cfo C Form Object internal format object file (TCU Turbo C Utilities) .cfp Fax (The Complete Fax Portable) .cga CGA display font (Ventura Publisher) .cgi Common Gateway Interface script .cgm Computer Graphics Metafile vector graphics (A&L - HG - many) .ch Header file (Clipper 5) .ch3 Chart (Harvard Graphics 3.0) .ch4 Presentation (Charisma 4.0) .chd Font descriptor (FontChameleon) .chi Document (ChiWriter) .chk Recovered data (ChkDsk) Temporary file (WordPerfect for Win) .chl Configuration History Log .chm Compiled HTML .chn Data (Ethnograph 3) .cho ChordPro file .chp Chapter file (Ventura Publisher) .chr Character set (Turbo C - Turbo Pascal) .cht Chart (Harvard Graphics 2.0 - SoftCraft Presenter) Interface file for ChartMaster (dBASE) .cid AnalogX Caller ID file .cif Caltech Intermediate Format graphics Chapter information (Ventura Publisher) .cil Clip Gallery Download Package .cix Database index (TCU Turbo C Utilities) .ckb Keyboard mapping (Borland C++ 4.5) .cl Common LISP source code file .cl3 Easy CD Creator Layout file .cl4 Easy CD Creator Layout file .cl5 Easy CD Creator Layout file .clb ICQ Contact List MS Office XP Developer Code Librarian cdrLabel Compact Disc Label .clp Clip art graphics (Quattro Pro) Clipboard file (Windows 3.x) Compiler script file (clip list) (Clipper 5) .clr Color binary screen image (1st Reader) Color definitions (Photostyler) .cls C++ class definition file .cm Data file (CraftMan) .cmd Batch file (OS/2) Command (dBASE - Waffle) External command menu (1st Reader) .cmf FM-music file (Creative Music File) .cmk Card (Card Shop Plus) .cmm Cmm script (batch) file (CEnvi) .cmo Virtools Composition file .cmp Header file for PostScript printer files (CorelDRAW) User dictionary (MS Word for DOS) Bitmap graphics (Lead CMP compression) .cmq Culturemetrics file .cml     COMAL programming language .cms     TrialDirector media storage
    .cmt Culturemetrics file .cmv Animation (CorelMove CorelDraw 4.0) .cmx Corel PhotoPaint Image Corel Presentation Exchange Image The Sims (Maxis) 3D Body Mesh Data Apple Viewer file .cnc CNC general program data .cnd ControlDraw file Embroidery Design file .cnf Configuration (program - printer setup) .cnt Helpfile contents .cnv Data conversion support file (Word for Windows) Temporary file (WordPerfect for Win) .cob Cobol source code file .cod Datafile (Forecast Plus - MS Multiplan - StatPac Gold) Program compiled code (FORTRAN) Template source file (dBASE Application Generator) Videotext file .col Color palette (Autodesk Animator - many) Spreadsheet (MS Multiplan) .com Command (memory image of executable program) (DOS) .con Configuration file (Simdir) .cor Protein Structure file Web GPS Correction Server Export file WMOVIEC Input file .cpd Script (Complaints Desk) .cpe MS Fax Cover Sheet .cpf Fax (The Complete Fax) .cph Corel Print House image .cpi Code Page Information file (DOS) Colorlab Processed Image bitmap graphics .cpl Control panel file (Windows 3.x) Presentation (Compel) .cpo Corel Print House file .cpp C++ source code file Presentation (CA-Cricket Presents) .cps Backup of startup files by Central Point PC Tools autoexec.cps coloured postscript files .cpt Compressed Mac file archive created by COMPACT PRO ( Corel Photo-Paint Image Encrypted memo file (dBASE) Template (CA-Cricket Presents) .cpx Control Panel Applet Corel Presentation Exchange Compressed Drawing .cpy Copy Books Data file .cpz Music text file (COMPOZ) .crd Cardfile (Windows 3.x - YourWay) ColdRED Script file Guitar Chord file .crf Cross-reference (MS MASM - Zortech C++) .crh Links Games Course file MS Golf Image file .crp Encrypted database (dBASE IV) .crs File Conversion Resource (WordPerfect 5.1) .crt Terminal settings information (Oracle) .crtr Multi-Ad Creator 7 document
    .cru Compressed file archive created by CRUSH .crx Links Games Course file .crz Links Games Course file .csa Comma Deliminated Text Ultimate Ride Roller Coaster .csf Van Dyke's CRT/SecureCRT Script file .csg Graph (Statistica/w) .csh Hamilton Labs C Shell Script file .csk Claris Works .csm Precompiled headers (Borland C++ 4.5) .csp Pc Emcee Screen Image file (Computer Support Corporation) .css Datafile (CSS - Stats+) Datasheet (Statistica/w) .cst Macromedia Director Cast file .csv Comma Separated Values text file format (ASCII) Adjusted EGA/VGA palette (CompuShow) .ctc Control file (PC Installer) .ctd Cobra Track Dump Cardtable file Marine Data file Simpsons Cartoon Studio Export file .ctf Character code translation file (Symphony) .ctg Cartridge Definition file ChessBase Opening Book Canon Powershot Pro 70 Info file .ctl Control file (dBASE IV - Aldus Setup) Setup information .ctt Labview file .ctx Course TeXt file (Microsoft online guides) Ciphertext file (Pretty Good Privacy RSA System) .cty SimCity City file .cue MS Cue Cards data .cuf C Utilities Form definition (TCU Turbo C Utilities) .cul Windows cursor library (IconForge, ImageForge, ImageForge PRO) .cur Cursor image file (Windows 3.x) .cut Bitmap graphics (Dr. Halo) .cv4 Color file (CodeView) .cv5 Canvas version 5 .cva Compaq Diagnostics .cvb Borland BDE File .cvp Cover page (WinFax) .cvr WinFax Cover Sheet ElectraSoft Fax Cover Sheet .cvs Graphics (Canvas) .cvt Backup file for CONVERTed database file (dBASE IV) .cvw Color file (CodeView) .cwk Claris Works data .cwz CropWalker file .cxp Core Media Player XML-based Playlist File .cxt Macromedia Director Protected Cast file .cxx C++ source code file (Zortech C++) .d     programming language source code
    GBG DraftMaker Drawing File .d00 Blaster Master Pro File         AdLib Format File .d2s Character file (Diablo 2) .d3d File Extension for Desktop-3D Notes Compressed Draw 3D file .d64 Commodore 64 Emulator Disk Image .dat Data file in special format or ASCII Gunlok Archive Mitsubishi DJ-1000 and Photorun Native Format Nascar Racing Archive SPOT Graphic WordPerfect Merge Data .day Journal file   
    .db Configuration (dBASE IV - dBFast) Database (Paradox - Smartware) .db$ Temperature debug info (Clarion Modula-2) Temporary file (dBASE) .db2 Database (dBASE II) .db3 Database (dBASE III) .dba Datafile (DataEase) .dbb ANSYS Database Backup Mopheus music file .dbd Business data (Business Insight) Debug info (Clarion Modula-2) .dbf Database file (dBASE III/IV - FoxPro - dBFast - DataBoss) Oracle 8.x Tablespace File .dbg Symbolic debugging information (MS C/C++) .dbk Database backup (dBASE IV) .dbl Windows XP Activation file .dbm Datafile (DataEase) Cold Fusion Template Menu template (DataBoss) .dbo Compiled program (dBASE IV) .dbs Database in SQL Windows format Datafile (PRODAS) Printer description file (Word - Works) .dbt Data Base Text (Clipper) Foxbase+ style memo (FoxPro) Memo file for database w/same name (dBASE IV - dBFast) .dbw Windows file (DataBoss) .dbx Database DataBeam Image MS Visual Foxpro Table .dca Document Content Architecture text file (IBM DisplayWrite) .dcf Disk image file .dcm DCM Module Format Dicom .dcp Data CodePage (OS/2) .dcr Kodak Proprietary Image Format Shockwave file .dcs Bitmap graphics (CYMK format) (QuarkXPress) Datafile (ACT! Activity Files) .dct Database dictionary (Clarion Database Developer) Spell checking dictionary (Harvard Graphics 3.0 - Symphony) .dcx FAX Image ElectraSoft Fax PC-Paintbrush file Bitmap Graphics (Multipage PCX) Macros MS Visual Foxpro Database Container .dd Compressed Macintosh file archive created by DISKDOUBLER .ddb Bitmap graphics .ddc DivX Descriptor Description File .ddf MS Data Definition Language file .ddi Diskdupe Image file ( .ddp Device Driver Profile file (OS/2) .de MetaProducts Download Express incompletely downloaded file .deb Debug script (DOS Debug) .dec VersaPro Declaration file .def Assembly header file (Geoworks) DATAIR data entry format file Defaults - definitions .dem Demonstration Graphics (VistaPro) .des Description Text Tribes 2 Game file Quickbooks Template Pro/DESKTOP file Interscope BlackBox file .dev Device driver .dfd Data Flow Diagram graphic (Prosa) .dff Criterion RenderWare 3.x 3D object format .dfi Outline font description (Digifont) .dfl Default program settings (Signature) FreshDownloads (FreshDownload List temp file) .dfm Data Flow Diagram model file (Prosa) .dfs Delight Sound file .dft Fakt2000 file SolidEdge CAD file Workshare Synergy file PC Draft file .dfv Printing form (Word) .dfx Drafix file .dgn Graphics (MicroStation) .dgr Fax Page (MS Outlook Express) DART Pro 98 File Group Details .dgs Diagnostics .dh Dependency information for .ph (Geoworks) .dhp Dr. Halo PIC Format graphics (Dr. Halo II - III) .dht Datafile (Gauss) .dia Diagraph graphics (Computer Support Corporation) .dib Bitmap graphics (Device-Independent Bitmap) .dic Lotus Notes / Domino dictonary file .dif Database (VisiCalc) Output from Diff command - script for Patch command Text file (Data Interchange Format) .dig Digilink Format Sound Designer Audio File Text Document .dip Graphics .dir Dialing directory file (Procomm Plus) Directory file (VAX) Movie (MacroMind Director 4.x) .dis DATAIR data import specification file Distribution file (VAX Mail) Thesaurus (CorelDraw) .diz Description file (Description In Zip) .dje MattBatt iAM-player .dkb Raytraced graphics (DKBTrace) .dl Animation (Italian origin) .dl_ Compressed .dll file in an Install Archive .dld Data (Lotus 1-2-3) .dlg Dialog resource script file (MS Windows SDK) .dll Dynamic Link Library (Windows 3.x - OS/2) Export/import filter (CorelDRAW) .dls Setup (Norton Disklock) .dmf Delusion/XTracker digital music file Packed Amiga Disk Image .dmg Macintosh OS X Disk Image file .dml Medical Manager DML System Script .dmo Demo (Derive) .dmp Dump file (eg. screen or memory) .dms Compressed Amiga file archive created by DISKMASHER .dna Desktop DNA data storage file .dnasym Desktop DNA compiled application script .dnax Desktop DNA exclusion list (text) .dne Netica Bayes net file (Norsys Software Corp.) .dng Dungeon file .dnl DigitalWebBook Electronic Book netMod Modem Firmware Upgrade file .do ModelSim Filter Design HDL Coder .doc Document text file .dog Screen file (Laughing Dog Screen Maker) .doh Dependency information for .poh (Geoworks) .dos External command file (1st Reader) Network driver (eg. pkt_dis.dos) Text file containing DOS specific info .dot Line-type definition file (CorelDRAW) Template (Word for Windows) .dox Text file (MultiMate 4.0) .doz Description Out of Zip (VENDINFO) .dp Calendar file (Daily Planner) Data file (DataPhile) .dpk Delphi Package file .dpp Serif DrawPlus Drawing .dpr Default project- and state-related information (Borland C++) .dps DivX XP Skin .dpt Desktop DNA template .dpx Digital moving picture exchange format .dra Map Maker Pro GIS vector layer .drs Display Resource (WordPerfect for Win) .drv Device driver eg. for printer .drw Drawing (various) Vector graphics (Micrografx Designer) .ds4 Vector graphics (Micrografx Designer 4.0) .dsa DasyTec DASYLab file .dsb DasyTec DASYLab file .dsc Discard file (Oracle) .dsd Database (DataShaper) .dsf Micrografx Designer PC-TRUST Document Signer Delusion/XTracker Digital Sample .dsk Project desktop file (Borland C++ - Turbo Pascal) Simple IDs (database) .dsm Digital sound module (DSI) .dsn Design (Object System Designer) .dsp Display parameters (Signature) Graphics display driver (Dr.Halo) MS Developer Studio Project .dsr Driver Resource (WordPerfect for Win) .dss Screensaver file (DCC) Sound (Digital Soup) .dst PC-RDist Distribution file Embroidery Machine Stitch file (VeePro) .dsw Desktop settings (Borland C++ 4.5) .dsy PC Draft Symbol Library .dt_ Data fork of a Macintosh file (Mac-ette) .dta Data file (Turbo Pascal - PC-File - Stata) .dtd SGML Document Definition file .dtf Database file (PFS - Q&A) .dtp Document (Timeworks Publisher3) Publication (Publish-It!) .dup Duplicate Backup .dus Readiris font dictionary .dvc Data (Lotus 1-2-3) .dvf DV Studio Camcorder Graphics file .dvi Device Independent document (TeX) .dvp Desqview Program Information file (DESQview) Device parameter file (AutoCAD) .dvr DR-92 Manager file .dvr-ms files created by Stream Buffer Engine(SBE) .dw2 Drawing (DesignCAD for windows) .dwc Compressed file archive created by DWC (dwc-a501.exe) .dwd Davka Writer file DiamondWare Digitized file .dwf Autodesk WHIP! Drawing Web file MS WHIP autoCAD REader Drawing Web file .dwg Drawing (Drafix) Drawing database (AutoCAD) .dwk    DADiSP Worksheet File .dwt AutoCAD Template/Prototype file Macromedia Dreamweaver Template file Demon's World Game Texture file .dwz DVD movieFactory 3 .dx Text file (DEC WPS/DX format - DEC WPS Plus) .dxf Drawing Interchange File Format vector graphics (AutoCAD) .dxn Fax (Fujitsu dexNET) .dxr Dependable Strengths Administrator Resources Green Building Advisor file Macromedia Director Protected Movie file .dyc ICUII Videochat file .dylib Apple osx extension for lib .dyn Data (Lotus 1-2-3) .dz Dzip Compressed file .eap Enterprise Architect Project file .ear Java Enterprise Application Packaging Unit .eas Elite Visual Basic API Spy .ebj Error-checking object file (Geoworks) .ebo MS Reader Ebook Format .ebp Pocket PC WindowsCE Project file .ecf WinFax Office Add-in file .eco NetManage ECCO file .ecw Ensoniq Waveset Format EclipseCrossword Crossword Puzzle .edb MS Exchange Database ROOTS3 geneological data .edl Edit Decision List (management for video/film post production) .eds Ensoniq SQ80 disk image .edt Default settings (VAX Edt editor) .eeb Button bar for Equation Editor (WordPerfect for Win) .efe Ensoniq EPS file .eft High resolution screen font (ChiWriter) .efx Fax (Everex EFax) .ega EGA display font (Ventura Publisher) .ek5 SonarData Echoview file .ek6 SonarData Echoview file .ekm EXP: The Scientific Word Processor Macro .el Elisp source code file (Emacs lisp) .elc Compiled ELISP code (Emacs lisp) .elm MS FrontPage Theme-Pack file .elt Event list text file (Prosa) .email Outlook Express Mail Message .emb Everest Embedded Bank File .emd ABT Extended Module .emf Enchanced Metafile graphics .eml MS Outlook Express Electronic Mail .emp E-Music File Format .ems PC Tools Enhanced Menu System Config .emu Terminal emulation data (BITCOM) .emx Ensuredmail encrypted file/e-mail message .enc Encoded file - UUENCODEd file (Lotus 1-2-3 - uuexe515.exe) Music (Encore) .end Arrow-head definition file (CorelDRAW) .eng Dictionary engine (Sprint) Graphics (charting) (EnerGraphics) .ens EndNote Styles file .env Enveloper macro (WOPR) Environment file (WordPerfect for Win) .eot MS WEFT Embedded OpenType file .epd Publication (Express Publisher) .epf Encryption Protection (encrypted file format) The extension of the Entrust Profile files. .epi Document (Express Publisher) .epp EditPad Pro Project .eps Encapsulated PostScript vector graphics (Adobe Illustrator) Printer font (Epson - Xerox...) (Ventura Publisher) .eqn Equation (WordPerfect for Win) .erd Entity Relationship Diagram graphic file (Prosa) .erm Entity Relationship Diagram model file (Prosa) .err Error log Error messages for command line compilers .esp Ventura file .esh Extended Shell batch file .esl MS Visual FoxPro Distributable Support Library .ess EXP: The Scientific Word Processor Style Sheet .est MS Streets & Trips 2001 Trip file .etf Enriched Text file PolyEdit file .eth Document (Ethnograph 3) .etx Structure Enhanced (setext) text .ev SonarData Echoview file .evi SonarData Echoview file .evl SonarData Echoview file .evr SonarData Echoview file .evt Event log .evy Document (WordPerfect Envoy) .ewd Document (Express Publisher for Windows) .ewl EclipseCrossword Word List Microsoft Encarta Document .ex_ Compressed .EXE File in an Install Archive .ex3 Device driver (Harvard Graphics 3.0) .exc Rexx source code file (VM/CMS) Exclude file for Optimize (do not process) (QEMM) .exd Control Information Cache .exe Directly executable program (DOS) .exm Msdos executable, system-manager compliant (HP calculator) .exp ICQ Saved Chat file .ext Extension file (Norton Commander) .ext2fs filesystem driver in the Linux kernel .exx Intermediate file by MsgPut (IBM LinkWay) .ezf Fax (Calculus EZ-Fax) .ezm Text file .ezp Edify Electronic Workforce Backup Utility .ezz eZBackup backup file .f Fortran source code file Compressed file archive created by FREEZE .f01 Fax (perfectfax) .f06 Dos screen text font - height 6 pixels ( .f07 Dos screen text font - height 7 pixels ( .f08 Dos screen text font - height 8 pixels ( .f09 Dos screen text font - height 9 pixels ( .f10 Dos screen text font - height 10 pixels ( .f11 Dos screen text font - height 11 pixels ( .f12 Dos screen text font - height 12 pixels ( .f13 Dos screen text font - height 13 pixels ( .f14 Dos screen text font - height 14 pixels ( .f16 Dos screen text font - height 16 pixels ( .f2 FLASH BIOS file .f2r Linear module (music) (Farandole) .f3r Blocked module (music) (Farandole) .f77 Fortran 77 source code file .f90 Fortran file .f96 Fax (Frecom FAX96) .fac Face graphics .faq Frequently Asked Questions text file .far Farandoyle Tracker Music Module The Sims (Maxis) Archive file .fav MS Outlook Bar Shortcuts .fax Fax (raster graphics) (most Fax programs) .fbc FamilyTree Compressed backup file .fbk Navison Financials Backup FamilyTree Backup file .fc Spell checking dictionary (Harvard Graphics 2.0) .fcd Virtual CD-ROM FastCAD/EasyCAD Output Patton & Patton Flow Charting 3 file IsoBuster file .fcm Binary file patch file (forward compression)( .fcp FLAMES Checkpoint Restart file (Ternion) .fcs Flow Cytometry Standard Format Fantasy Football League Organizer file RealProducer Pro Settings c-tree Server/Plus Data file Canon Zoom Browser EX file CD Trustee file Spectrum Server Log file .fcw Campaign Cartographer 2 file .fd Declaration file (MS Fortran) Field offsets for compiler (DataFlex) .fdb Art Explosion Portfolio Catalog file Legacy Family Tree Database Navison Financials Database .fde FLAMES Dataset Export file (Ternion) .fdf Adobe Acrobat Forms document .fdr Final Draft Document file Embroidery Design file .fdw Form (F3 Design and Mapping) .feb Button bar for Figure Editor (WordPerfect for Win) .fef Steuer2001 file .fes Fabio Editing Software 3D Topicscape - exported fileless occurrence .fev FLAMES Environment Variable file (Ternion) .ff Outline font description (Agfa Compugraphics) .ffa MS Fast Find file .fff Fax (defFax) .ffl MS Fast Find file .ffo MS Fast Find file .fft Dca/FFT Final Form Text text file (DisplayWrite) .ffx Microsoft Fast Find file .fgd Folder Guard Data Half-life Modification Map Configuration file Digital Raster Graphic Metadata file .fh3 Vector graphics (Aldus FreeHand 3.x) .fh4 Vector graphics (Aldus FreeHand 4.x) .fh5 Freehand 5 .fh6 Freehand 6 .fh7 Freehand 7 .fh8 Macromedia Freehand 8 .fh9 Macromedia Freehand 9 .fh10 Macromedia Freehand 10 .fi Interface file (MS Fortran) .fif Fractal Image Format file .fig REND386/AVRIL Graphic Super Nintendo Game-console ROM Image .fil File template (Application Generator) Files list object file (dBASE Application Generator) Overlay (WordPerfect) .fin Print-formatted text file (Perfect Writer - Scribble - MINCE) .fit Fits graphics File Index Table (WindowsNT) .fix Patch file .fky Macro file (FoxPro) .fla Macromedia Flash .flac Free Lossless Audio Codec .flb Format library (Papyrus) .flc Animation (Autodesk Animator) .fld Folder (Charisma) .flf Corel Paradox Form Firehand Lightning Graphic Collection Navison Financials License file OS/2 Driver file .fli Tex font library (EmTeX) Animation (Autodesk Animator) .flm Film Roll (AutoCAD/AutoShade) .flo Micrografx FlowCharter .flp FlipAlbum file Fruityloops Saved file .flt Asymetrix Graphics Filter Support file CoolEdit Pro Filter Corel Graphic Filter FileMaker Filter FLIC Animation (DTA) Micrografx Picture Publisher Filter MS Graphics Filter MulitGen Open Flight file OS/2 Warp Filter Device Driver StarTrekker Music Module WinFlash Educator Flashcard Compiled Test file .flv Macromedia Flash Video file .flx Compiled binary (DataFlex) .fm Spreatsheet (FileMaker Pro) FrameMaker file .fm1 Spreadsheet (Lotus 1-2-3 release 2.x) .fm3 Device driver (Harvard Graphics 3.0) Spreadsheet (Lotus 1-2-3 release 3.x) .fmb File Manager Button bar (WordPerfect for Win) .fmf Font or icon file (IBM LinkWay) .fmg FreeMarkets Graphics Browser .fmk Makefile (Fortran PowerStation) .fmo Compiled format file (dBASE IV) .fmp FileMaker Pro Document FLAMES Model Prototype file (Ternion) .fmt Format file (dBASE IV - FoxPro - Clipper 5 - dBFast) Style sheet (Sprint) .fmv Frame Vector Metafile .fmz Form Z Program files (drawing program) .fn3 Font file (Harvard Graphics 3.0) .fnt Font file (many) .fnx Inactive font (Exact) .fo1 Font file (Borland Turbo C) .fo2 Font file (Borland Turbo C) .fol Folder of saved messages (1st Reader) .fon Dialing directory file (Telix) Font file (many - Windows 3.x font library) Log of all calls (Procomm Plus) .for Fortran source code file Form (WindowBase) .fot Installed Truetype font (Windows Font Installer) .fp Configuration file (FoxPro) .fp3 FileMaker Pro 3.0 and earlier files .fp4 FileMaker Pro 4.0 .fp5 FileMaker Pro 5.0 and later files .fpb FLAMES Playback file (Ternion) .fpc Catalog (FoxPro) .fpk JetForm FormFlow file .fpr FLAMES Prototype file (Ternion) .fpt Memo (FoxPro) .fpw Floorplan drawing (FloorPLAN plus for Windows) .fpx FlashPix Bitmap .fqy FLAMES FLARE Command file (Ternion) .fr3 Renamed dBASE III+ form file (dBASE IV) .frc FLAMES RECORD Output file; FLARE Input file (Ternion) .fre Creative Digital Blaster Digital VCR file Male Normal CT .frf Font (FontMonger) .frg Uncompiled report file (dBASE IV) .frl FormFlow file .frm Form (Visual Basic) Report file (dBASE IV - Clipper 5 - dBFast) Text (order form) .fro Compiled report file (dBASE IV) .frp Form (PerForm PRO Plus - FormFlow) .frs Screen Font Resource (WordPerfect for Win) .frt Report memo (FoxPro) .frx Report (FoxPro) .fsc FLAMES Scenario file (Ternion) .fsh EA Sports Game Graphic Editor file .fsl Form (Paradox for Windows) .fsm Farandoyle Sample format music .fst Linkable program (dBFast) .fsx Data (Lotus 1-2-3) .fsy Fileware's Filesync .ftm Font file (Micrografx) .fts Windows Help Full-Text Search Index file .ftw Family file FontTwister .ftp Configuration (FTP Software PC/TCP) .fvt Interlock Public Computer Utility .fw Database (FrameWork) .fw2 Database (Framework II) .fw3 Database (Framework III) .fx On-line guide (FastLynx) .fxd Phonebook (FAXit) .fxm WinFax/WinFax MiniViewer Fax .fxo Fax Image Document .fxp Compiled format (FoxPro) .fxr WinFax Received Document .fxs Fax Transmit Format graphics (WinFax) .g Data chart (APPLAUSE) .g3f Zetafax TIFF file (fine resolution) .g3n Zetafax TIFF file (normal resolution) .g8 Raw graphics (one byte per pixel) plane three (PicLab) .gal Corel Multimedia Manager Album .gam Fax (GammaFax) TADS 2.x Game file Baldur's Gate Game file Animated E-mail .gat Gator file .gb GameBoy ROM .gba Game Boy Advanced ROM GrabIt Batch files .gbc Game Boy COlor ROM .gbd Gator Banner file .gbl Global definitions (VAXTPU editor) .gbr GIMP Brush file Gerber Format file .gbx Gerber file .gc1 Lisp source code (Golden Common Lisp 1.1) .gc3 Lisp source code (Golden Common Lisp 3.1) .gcd Graphics .gdb Interbase Database Group Mail file .gdf Dictionary file (GEOS) .gdr Bitmap Font file (SymbianOS) .ged Editor's native file format (Arts & Letters) GEDCOM Family History file Graphic Environment Document Graphics editor file (EnerGraphics) .gem Vector graphics (GEM - Ventura Publisher) .gen Compiled template (dBASE Application Generator) Generated text (Ventura Publisher) Genius Family Tree .geo Geode (Geoworks) .gfb Compressed GIF image created by GIFBLAST (gifblast.exe) .gft Font (NeoPaint) .gfx Genigraphics Graphics Link Presentation Graphic format used by Allen Bradley SCADA Software (RSView Works) .gho Symantec Ghost Disk image file .ghs Lasertank High Scores Symantec Ghost Disk Image Span file .gib Chart (Graph-in-the-Box) .gid Windows Help index file .gif Graphics Interchange Format bitmap graphics (CompuShow) .gig Sound file .giw Presentation (Graph-in-the-Box for Windows) .gl Animation (GRASP GRAphical System for Presentation) .glm Datafile (Glim) .gls Datafile (Across) .gly Glossary (MS Word) .gmd Game Maker file format
    .gmf CGM graphics (APPLAUSE) .gmp Geomorph tile map (SPX) .gno Genopro Genealogy Document file .goc Goc source code file (Geoworks) .goh Goc header file (Geoworks) .gp Geode parameter file (Geoworks Glue) .gp3 CCITT Group 3 file GuitarPro 3 .gpd VISUAL EPR Input Data for PARAMS.EXE .gph Graph (Lotus 1-2-3/G) .gpk Omnigo program package .gr2 Screen driver (Windows 3.x) .gra Datafile (SigmaPlot) .grb Ms-DOS Shell Monitor file (MS-DOS 5) .grd Gradebook Power file Map Projection Grid file .grf Graph file (Graph Plus - Charisma) .grl Matlab Graphic Format .grp Group file (Windows 3.x - Papyrus) Pictures group (PixBase) .grx File list (GetRight) .gry Raw GREY graphics .gs1 Presentation (GraphShow) .gsd Vector graphics (Professional Draw) GSplit file splitting utility ( .gsm Raw GSM 6.10 Audio Stream Sound file US Robotics modem file .gsp Geometer's Sketchpad Material file .gsw Worksheet (GraphShow) .gtp GuitarPro file .gts Genome Software Tempo Alarm Clock .gup Data (PopMail) .gwi Groupwise File .gwp Greetings WorkShop file .gxd General CADD Pro file GX-Reports file Jeol EX Spectrometer Data file .gxl Graphics library (Genus) .gxt GTA2 Game file .gym Sega Genesis Music Logged Format .gz Compressed file archive created by GZIP (GNU zip) .h Header file .h! On-line help file (Flambeaux Help! Display Engine) .h++ Header file (C++) .h-- Header file (Sphinx C--) .ha Compressed file archive created by HA ( .ham Image file .hap Compressed file archive created by HAP ( .hbk Handbook (Mathcad) .hbs eBerry Transparent Animation - compressed bitmap files .hcr IBM HCD/HCM Production Configuration .hdf Hierarchical Data File graphics (SDSC Image Tools) Help file (Help Development Kit) .hdl Alternate download file listing (Procomm Plus) .hdp Magix Music/Video .hdr Pc-File+ Database header Datafile (Egret) Message header text (Procomm Plus - 1st Reader) .hdw Vector graphics (Harvard Draw) .hdx Help index (AutoCAD - Zortech C++) .hex Hex dump .hfi Hp Font Info file (GEM) .hfx HotFax file US Robotics Rapid Comm Voice Data file .hgl Hp Graphics Language graphics .hh C++ header file .hhc Table of Contents file TurboTax Contents file .hhh Precompiled header file (Power C) .hhk Help Workshop Index file .hhp Help information for remote users (Procomm Plus) .hht MS Messenger file .hin Molecule (HyperChem) .his Insight II Dynamics Trajectory History file Spy-CD CD Search Database file .hlb Help library (VAX) .hlp Help information .hlz Multi-Edit Packed Help file .hm3 Help & Manual 3 project Format .hmm Alternate Mail Read option menu (Procomm Plus) .hnc CNC program files Heidenhain (?) dialog .hof Hall Of Fame (game scores) .hp8 Ascii text HP Roman8 character set (NewWave Write) .hpf Hp LaserJet fonts (PageMaker) .hpg HPGL plotter file vector graphics (AutoCad - Harvard Graphics) .hpi Font information file (GEM) .hpj Help project (MS Help Compiler) .hpk Compressed file archive created by HPACK ( .hpm Emm text (HP NewWave) Alternate Main menu for privileged users (Procomm Plus) .hpp C++ header file (Zortech C++) .hqx Compressed Macintosh ASCII archive created by BINHEX ( .hrf Graphics (Hitachi Raster Format) .hrm Alternate Main menu for limited/normal users (Procomm Plus) .hs2 Monochrome image (Postering) .hsi Handmade Software Inc. graphics - almost JPEG (Image Alchemy) .hst History file (Procomm Plus) .hta Hypertext application .htc HTML Component (mechanism for implementing Dynamic HTML in script) .htf WebBase File .hti WebBase File .htm HyperText Markup Language document .htr Motion Analysis Software Skeletal file .htt Hypertext template .htx Hypertext file .hus Husqvarna Designer I Embroidery Machine Format .hwd Presentation (Hollywood) .hxm Alternate Protocol Selection menu for all users (Procomm Plus) .hxx C++ header file .hy1 Hyphenation algorithms (Ventura Publisher) .hy2 Hyphenation algorithms (Ventura Publisher) .hyc Data (WordPerfect) .hyd Hyphenation dictionary (WordPerfect for Win) .hyp Compressed file archive created by HYPER ( .hyt VFSMOD Project output file .i Intermediate file (Borland C++ 4.5) .iaf MS Outlook 97 and 2000 e-mail account settings .iax Bitmap graphics (IBM Image Access eXecutive) .ibm Compressed file archive created by ARCHDOS (Internal IBM only) .ica Bitmap graphics (Image Object Content Architecture) .icb Bitmap graphics .icc Kodak Printer Image IronCAD Catalog .icd IronCAD 2D CAD file .icl icon library (ActivIcons, IconForge, ImageForge, ImageForge PRO) .icm Image Color Matching Profile file ICC Profile, Acer Monotor Drive .icn Icon source code file .ico Icon (Windows 3.x) .id Disk identification file .idb Database Used by Disassembler MS Developer Intermediate file .ide Project (Borland C++ 4.5) .idf ARTiSAN Real-time Studio ID file MIDI Instruments Drivers file .idl MS Visual C++ Interface Definition file OMG CORBA Interface Definition Language .idw Vector graphics (IntelliDraw) .idx Index (many - FoxPro) .ies Photometric file data .ifd Form (JetForm Design) .iff Interchange File Format bitmap graphics/sound (Amiga) Maxis The Sims Object file Philips CDI File Sun TAAC Image File Format (SDSC Image Tool) .ifo Saved graphic objects (ImageForge PRO) .ifp Script (KnowledgeMan) .ifs Fractal image compressed file (Yuvpak) System file (OS/2) hpfs.ifs .igr Intergraph SmartSketch Drawing .igs IGES-Format .igx iGrafx Process .iif QuickBooks for Windows Interchange file .ilb Data (Scream Tracker) .ilk Outline of program's format (MS ILink incremental linker) .im30 Sun Raster image file .im8 Sun raster graphics .ima Mirage vector graphics (EGO, Chart, Autumn) .imb IncrediMail file .imc IncrediMail file .imd Caseware IDEA (GIS data file) .imf ImageForge/IconForge saved filtered brushes(IconForge, ImageForge, ImageForge PRO) .img Bitmap graphics (Ventura Publisher - GEM Paint) .imm IncrediMail Trash .imn IncrediMail Notifier .imp Spreadsheet (Lotus Improv) Impaticized PowerPoint file .imq Image presentation (ImageQ) .ims Incredimail Graphic .imv Yahoo Instant Messenger IMVironment Impaticized Video format .imw Imageware Surfacer 3D CAD Surface Geometry IncrediMail Sound .imz Compressed floppy image .in$ Installation file (HP NewWave) .in3 Input device driver (Harvard Graphics 3.0) .inb Test script (Vermont HighTest) .inc Include file (several programming languages) .ind Index (dBASE IV) .inf Type 1 LaserJet font information file (soft font installers) Information text file (ASCII) Install script .ini Initialization file .ink Pantone reference fills file (CorelDRAW) .inl MS Visual C++ Inline Function file .inp GIS Software Text Input file Oracle Source Code Self-Extracting Archive Utility Project .ins Data (WordPerfect) Installation script (1st Reader) Instrument music file (Adlib) .int Borland Interface Units Program saved in Internal (semi-compiled) format (Signature) .inv Rogue Spear Inventory file .inx Index (Foxbase) .io Compressed file archive created by CPIO .iob 3d graphics database in TDDD format .ioc Organizational chart (Instant ORGcharting!) .ion 4dos descript.ion file (file descriptions) .ipd InstallPROG 6 EDBS Install Database .ipg Mindjongg Format .ipj Impatica OnCue Project file .ipl Pantone Spot reference palette file (CorelDRAW) .ipp Help & Manual Proprietary Image .ips Game Patch file MENSI 3Dipsos .ipx IPIX AV file .ipz ICQ Skin Plus .irs Resource (WordPerfect) .isd Spelling Checker dictionary (RapidFile) .ish Compressed file archive created by ISH .isk Command file .iso Easy CD Creator Disc Image File List for CD-ROM InstallShield Uninstall file ISO Buster file ISO-9660 Table RichWin Vector Graphics (IsoDraw Illustration) .isr MS Streets & Trips Route file .iss InstallShield Response file ISS Graphic .ist Digitrakker Instrument File (n-FaCToR) .isu InstallShield Uninstall Script Easy CD Creator 4 Uninstall file Netscape file .it Settings (intalk) .itf Interface file (JPI TopSpeed Pascal) .ith InTether technology secured file .iv OpenInventor files (the successor to Inventor) .iva security video data file .ivt MS Infoviewer Title .iw Presentation flowchart (IconAuthor - HSC InterActive) .iwa Text file (IBM Writing Assistant) .iwp Text file (Wang) .izt Izl binary token file (IZL) .j01 File Extension from ADP Payroll Company .jad  Java Application Descriptor extension (for installing MIDlets)
    .jar Java archive file .jas Graphics .jav Java source code file .jbc Jam Byte-Code Hex file BestCrypt File .jbd Datafile (SigmaScan) .jbf Paint Shop Pro browser file .jbk Juno Backup file .jbr Jasc Paint Shop Pro Brush .jbx Project file (Project Scheduler 4) .jdt Accelio Capture Classic Filler .jef Janome NH10000 Sewing Machine file .jet Fax (Hybrid JetFax) .jff Bitmap graphics (JPEG File Interchange Format) .jfx J2 Fax File .jhtml Dynamo Server Page .jif JPEG/JIFF Image Jeff's Image Format .jmx JMeter file .jnb Sigma Plot Workbook file .jnl Ingres Journal file .job Job file Task Scheduler Task Object AI Research file QuestVision Vector Graphics file .jor Journal file SQL .jou Journal backup (VAX Edt editor) .jpc Graphics (Japan PIC) .jpe JPEG image .jpg Bitmap graphics (Joint Photography Experts Group) .jps Stereo Image .js Microsoft Scripting Language "JScript" file extension .jsd eFAX Jet Suite Document .jsh Henter-Joyce, Inc. Jaws Script Header file .jsp Java Server page .jtf Fax (Hayes JT Fax) Bitmap graphics (JPEG Tagged Interchange Format) .jtp Jetform file .jup (New Planet Software) Code Crusader user's project preferences file .jw Text document (JustWrite) .jwl Library (JustWrite) .jwp Easy CD Creator Label file JWP Document .jzz Spreatsheet (Jazz) .k4e Karaoke 4 Everyone Player file .kar Midi file with karaoke word track .kb Keyboard script (Borland C++ 4.5) Program source (Knowledge Pro) .kbd Keyboard mapping (LocoScript - Signature - Procomm Plus) .kbm Keyboard mapping (Reflection 4.0) .kcl Lisp source code (Kyoto Common Lisp) .kcp Keychamp file .kdc Kodak Photo-Enhancer/Photogen file .kex Macro (KEDIT) .kext Mac OS X Kernel Extension .key Datafile (Forecast Pro) Keyboard macros Security file eg. Shareware Registration info .kit Raven Toolkit file .kix KixTart Script .kma Kodak Memory Book file .kmp Korg Trinity KeyMaP file .kmx Kaufman Mmail Warrior Mail Folder .kos MicroType Pro Document .kpl Kazaa Playlist KPL Source Code .kpp Toolpad (SmartPad) .kps Ibm KIPS bitmap graphics .kqe W32/Spybot.KQE Worm virus .kqp Konica Quality Picture .krz Kurzweil 2000 Sample .ktk Kutoka's Mia .kyb Keyboard mapping (FTP Software PC/TCP) .l Lex source code file Lisp source code file Linker directive file (WATCOM wlink) .l01 ARC Digitized Raster Graphics .lab Datafile (NCSS - SOLO) Mailing labels (Q+E for MS Excel) Mailing labels (Q+E for MS Excel) .lat Crossword Express Lattice file .lay Word chart layout (APPLAUSE) .lbg Label generator data (dBASE IV) .lbl Label (dBASE IV - Clipper 5 - dBFast) .lbm Bitmap graphics (DeluxePaint) Linear bitmap graphics (XLib) .lbo Compiled label (dBASE IV) .lbr Compressed file archive created by LU (lue220.arc) Display driver (Lotus 1-2-3) .lbt Label memo (FoxPro) .lbx Label (FoxPro) .lcf Linker Control File (Norton Guides compiler) .lck Lockfile (Paradox) .lcl Data (FTP Software PC/TCP) .lcn Lection (WordPerfect) .lcs Datafile (ACT! History Files) .lcw Spreadsheet (Lucid 3-D) .ld Long Distance codes file (Telix) .ld1 Overlay file (dBASE) .ldb Data (MS Access) .ldf Library definition file (Geoworks Glue) locking data file or (locking security file) IBM Works for OS/2 Filer Form Microsoft SQL Server Transaction Log File .leg Legacy Graphic Format .les Lesson (check *.cbt) .let Letter .lev Level file (NetHack 3.x) .lex Lexicon (dictionary) (many) .lfa LifeForm file .lft Laser printer font (ChiWriter) .lg Logo procedure definitions (LSRHS Logo) .lgx Gerber file .lgc Program Use Log file .lgo Logo for header and footer (SuperFax) Startup logo code (Windows 3.x) .lha Compressed file archive created by LHA/LHARC (lha255b.exe) .lhw Compressed Amiga file archive created by LHWARP .lib Library file (several programming languages) .lic License file (Shareware) .lid WinDVD file Light Field Description file Dylan Library Interchange Description LabelVision Auto Incrementing Value file Maple V Setup file Scholar's Aid Backup file .lif Logical Interchange Format data file (Hewlett-Packard) Compressed file archive .lim Compressed file archive created by LIMIT ( .lin Line types (AutoCAD) .lis Listing (VAX) .lit MS Reader EBook file .lix Extend Simulation Library file Libronix DLS Resource (LLS 2.x Index) .lj Text file for HP LJ II printer .lko MS Outlook Express Linked Object .ll3 Laplink III related file (document) (LapLink III) .lmt RPG Maker map tree file .lnd 3D Landscape Data .lng Diablo II file NRG SDR Language file .lnk Linker response file (.RTLink) .loc MicroSim PCBoard Component Locations Report Suppose Locations file .lod Load file .log Log file .lok Encrypted and compressed archive format (FileWrangler, SecurDesk!, ZipWrangler) .lpc Printer driver (TEKO) .lpd Helix Nuts and Bolts File Avery Label Pro .lpf Lytec's Direct Electronic Medical Claims ClaimsDirect .lpi Live Pictures .lpk Licensed ActiveX Control for Internet Explorer. .lrf Linker response file (MS C/C++) .lrs Language Resource File (WordPerfect for Win) .lsf Streaming Audio/Video file Libronix DLS Resource .lsl Lotus Script Library .lsp Lisp source code file (Xlisp) .lss Spreadsheet (Legato) .lst Keyboard macro (1st Reader) List file (archive index - compiler listfile) SAS Program file Spool file (Oracle) .ltm Form (Lotus Forms) .ltr Letter .lvp Lucent Voice Player LView Pro .lwa LightWorks Archive Material/Scene file .lwd Text document (LotusWorks) .lwo NewTek Lightwave Object .lwp Lotus Wordpro 96/97 File .lwz MS Linguistically Enhanced Sound file .lyr DataCAD Layer file .lzd Difference file for binaries (Ldiff 1.20) .lzh Compressed file archive created by LHA/LHARC (lha255b.exe) .lzs Compressed file archive created by LARC ( .lzw Compressed Amiga file archive created by LHWARP .lzx Compressed file .m Function (program) (Matlab) Macro module (Brief) Standard package (Mathematica) .m11 Text file (MASS11) .m2p MPEG-2 Program Stream Format file .m2v MPEG-2 Video Only file .m3 Modula 3 source code file .m3d 3d animation macro .m3u Music Playlist (Winamp) .m4 M4 preprocessor file (unix) .m4a MPEG-4 Audio Layer .m_u Backup of boot sector, FAT and boot dir (MazeGold) .ma3 Macro (Harvard Graphics 3.0) .mac Bitmap graphics (Macintosh MacPaint) Macro .mad MS Access Module Shortcut .mag Woody Lynn's MAG graphics format (MPS Magro Paint System) .mai Mail (VAX) .mak Makefile Project file (Visual Basic) .man Command manual .map Color palette Format data (Micrografx Picture Publisher) Linker map file Map (Atlas MapMaker) Network map (AccView) .mar Assembly program (VAX Macro) .mas Smartmaster set (Freelance Graphics) .mat Data file (Matlab) .max Max source code file Microsoft Data Analyser View .mb Memo field values for database (Paradox) .mbf MS Money Backup file .mbk Medisoft for Windows Backup Multiple index file backup (dBASE IV) .mbx Mailbox (Eudora/Zerberus) .mcc Configuration file (Mathcad) .mcd Document (Mathcad) .mcf Mathcad font Meta Content Format file Master Command file TMPGEnc template .mci Mci command script (Media Control Interface) .mcp Application script (Capsule) Printer driver (Mathcad) .mcr DataCAD Keyboard macro file .mcw Text file (MacWrite II) .mcx Graphic file .md Compressed file archive created by MDCD (mdcd10.arc) .md5 Message Digest 5 (Easy MD5 Creator) .mda Data (MS Access) .mdb Database (MS Access) .mdf Accelio Capture Classic (JetForm) Filler I-deas Master Drafting Machine Data file Menu Definition file MS-SQL Master Database file .mdl Model (3D Design Plus) Spreadsheet (CA-Compete!) .mdm Modem definition (TELIX) .mdmp Microsoft Windows XP Trouble Report .mdr FaxTalk Modem Doctor Modem Report file .mdt Data table (MS ILink incremental linker) .mdx Multiple index file (dBASE IV) .mdz MS Access Wizard Template .me Usually ASCII text file READ.ME .meb Macro Editor bottom overflow file (WordPerfect Library) .med Macro Editor delete save (WordPerfect Library) Music (OctaMED) .mem Macro Editor macro (WordPerfect Library) Memory variable save file (Clipper - dBASE IV - FoxPro) .meq Macro Editor print queue file (WordPerfect Library) .mer Macro Editor resident area (WordPerfect Library) (vakioalue) .mes Macro Editor work space file (WordPerfect Library) Message .met Macro Editor top overflow file (WordPerfect Library) Document (Omnipage Pro) .meu Menu group (DOS Shell) .mex Mex file (executable command) (Matlab) Macro Editor expound file (WordPerfect Library) Mioplanet mex reader interactive file .mf Metafont text file .mfx ImageMAKER Fax Viewer folder file .mgf Font (Micrografx) .mgp MagicPoint presentation .mhp MS Home Publishing Project .mht MS MHTML Document .mib Snmp MIB file .mic Microsoft Image Composer file .mid Standard MIDI file (music synthetizers) .mif Maker Interchange Format (FrameMaker) .mii Datafile (MicroStat-II) .mim MIME file .mio Multimedia Interactive Object .mip Paint Shop Pro Multiple Image Print file .mis Delta Force Land Warrior Mission MagicInstall Installation Script Tribes 2 Game file .mix Object file (Power C) .mk Makefile .mke Makefile (MS Windows SDK) .mki Japanese graphics MAKIchan format (MagView 0.5) .mks Data (TACT) .ml3 Project (Milestones 3.x) .mlb Macro library file (Symphony) .mlm Novel Groupwise e-mail file .mm Text file (MultiMate Advantage II) .mmc Media Catalog MSoffice Media Content .mmf Mail message file (MS Mail) .mml Mail Meta Language .mmm Movie (RIFF RMMP format) (MacroMind Director 3.x) .mmo Memo writer file (RapidFile) .mmp Output video format from Bravado board .mmx Command & Conquer Red Alert 2 Map file Oracle Forms Compiled Menu .mmz MusicMatch Theme file .mnd Menu source (AutoCAD Menu Compiler) .mng Map (DeLorme Map'n'Go) .mnt Menu memo (FoxPro) .mnu Advanced macro (HP NewWave) Menu (AutoCAD Menu Compiler - Norton Commander - Signature) .mnx Compiled menu (AutoCAD) Menu (FoxPro) .mny Account book (MS Money) .mob Device definition (PEN Windows) .m

    Published on: 2006-09-11 Author: