3ds Graphics (3D Studio)
.3fx Effect (CorelChart)
.3gr Data file (Windows Video Grabber)
.3t4 Binary file converter to ASCII (Util3)
.4c$ Datafile (4Cast/2)
.4sw 4dos Swap File
.4th Forth source code file (ForthCMP – LMI Forth)
.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)
.a Ada source code file
.a Library (unix)
.a11 Graphics AIIM image file
.ab6 Datafile (ABStat)
.ab8 Datafile (ABStat)
.abk Automatic backup file (CorelDRAW)
.abs Abstracts (info file)
.abs Data file (Abscissa)
.aca Project (Project Manager Workbench)
.acb Graphics (ACMB)
.acc Program (DR-DOS – ViewMax) (GEM / resident)
.act Actor source code file
.act Foxdoc Action Diagrams (FoxPro)
.act Presentation (Action!)
.ad Screen saver data (AfterDark)
.ada Ada source code file
.adb Ada Package Body
.adc Bitmap graphics (16 colors) (Scanstudio)
.adi Graphics (AutoCAD)
.adl Mca adapter description library (QEMM)
.ai Vector graphics (Adobe Illustrator)
.ain Compressed file archive created by AIN
.aio APL file transfer format file
.ais Array of Intensity Samples graphics (Xerox)
.aix Datafile for cardfile application (HP NewWave)
.all Format file for working pages (Always)
.all General printer information (WordPerfect for Win)
.all Symbol and font files (Arts & Letters)
.alt Menu file (WordPerfect Library)
.amf Music (Advanced Module Format)
.amg Compressed file archive created by AMGC
.amg System image file (Actor)
.ani Animation (Presidio – many)
.anm Animation (Deluxe Paint Animator)
.ann Help Annotations (Windows 3.x)
.ans Ansi graphics (character animation)
.ans Ascii text ANSI character set (NewWave Write)
.aos Add-On Software (Nokia 9000)
.ap Compressed Amiga file archive created by WHAP
.ap Datafile (Datalex EntryPoint 90)
.apc Printer driver (Lotus 1-2-3)
.apd Printer driver (Lotus 1-2-3)
.apf Printer driver (Lotus 1-2-3)
.api Passed parameter file (1st Reader)
.api Printer driver (Lotus 1-2-3)
.apl APL work space format file
.app Add-in application file (Symphony)
.arf Automatic Response File
.ari Compressed file archive created by ARI
.arj Compressed file archive created by ARJ (arj241.exe)
.ark Arc file archive created by CP/M port of ARC file archiver
.ark Compressed file archive created by QUARK
.arr Arrangement (Atari Cubase)
.art Graphics (scrapbook) (Art Import)
.art Raster graphics (First Publisher)
.arx Compressed file archive created by ARX
.asc Ascii text file
.asc Transport armor file (PGP)
.asd Autosave file (Word for Windows)
.asd Presentation (Astound)
.asd Screen driver (Lotus 1-2-3)
.asf Datafile (STATGRAPHICS)
.asf Screen font (Lotus 1-2-3)
.ash Assembly language header file (TASM 3.0)
.asi Assembler include file (Turbo C – Borland C++)
.asm Assembly source code file
.ava Publication (Avagio)
.avi Audio Video Interleaved animation file (Video for Windows)
.aw Text file (HP AdvanceWrite)
.awk Awk script/program
.awm Movie (Animation Works)
.aws Data (STATGRAPHICS)
.b Batch list (APPLAUSE)
.b&w Black and white graphics (atari – mac)
.b&w Mono binary screen image (1st Reader)
.b1n Both mono and color binary screen image (1st Reader)
.b30 Printer font (JLaser – Cordata) (Ventura Publisher)
.b8 Raw graphics (one byte per pixel) plane two (PicLab)
.b_w Black and white graphics (atari – mac)
.bad Bad file (Oracle)
.bak Backup file)
.bbm Brush (Deluxe Paint)
.bbs Bulletin Board System announce or text info file
.bch Batch process object file (dBASE Application Generator)
.bch Datafile (Datalex EntryPoint 90)
.bco Outline font description (Bitstream)
.bcp Borland C++ makefile
.bcw Environment settings (Borland C++ 4.5)
.bdf Bitmap Distribution Format font file (X11)
.bdf 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
.bgi Borland Graphics Interface device driver
.bib Bibliography (ASCII)
.bib Database – not compatible with TeX format (Papyrus)
.bib Literature database (TeX/BibTeX)
.bif Binary Image Format b&w graphics (Image Capture board)
.bin Binary file
.bio OS/2 BIOS
.bit Bitmap X11
.bk Faxbook (JetFax)
.bk! Document backup (WordPerfect for Win)..bkw Mirror image of font set (FontEdit)
.bld Bloadable picture (BASIC)
.blk Temporary file (WordPerfect for Win)
.bm Bitmap graphics
.bmk Help Bookmarks (Windows 3.x)
.bmp Bitmap graphics (PC Paintbrush – many)
.bnk Adlib instrument bank file
.boo Compressed file ASCII archive created by BOO (msbooasm.arc)
.bpc Chart (Business Plan Toolkit)
.bpt Bitmap fills file (CorelDRAW)
.br Script (Bridge)
.brd Eagle Layout File
.brk Fax (Brooktrout Fax-Mail)
.bsa Compressed file archive created by BSARC
.bsc Compressed Apple II file archive created by BINSCII
.bsc Database (Source Browser)
.bsc Pwbrmake object file (MS Fortran)
.btm Batch To Memory batch file (4DOS)
.bug Bugs and Problems
.bup Backup file
.but Button definitions (Buttons!)
.buy Datafile format (movie).
.bwr Beware (buglist) (Kermit)
.c C source code file
.c Compressed unix file archive created by COMPACT
.c++ C++ source code file
.c– Source code (Sphinx C–)
.c00 Print file (Ventura Publisher)
.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)
.cal Calendar file (Windows 3.x)
.cal Spreatsheet (SuperCalc)
.can Fax (Navigator Fax)
.cap Caption (Ventura Publisher)
.cap Session capture file (Telix)
.cas Comma-delimited ASCII File
.cat Catalog (dBASE IV)
.cbc Fuzzy logic system (CubiCalc)
.cbl Cobol source code file
.cbm Compiled bitmap graphics (XLib)
.cbt Computer Based Training (many)
.cc C++ source code file
.ccb Visual Basic Animated Button Configuration
.ccc Bitmap graphics (native format) (Curtain Call)
.ccf Communications configuration file (Symphony)
.cch Chart (CorelChart)
.ccl Communication Command Language file (Intalk)
.cco Btx Graphics file (XBTX)
.cdb Card database (CardScan)
.cdb Main database (TCU Turbo C Utilities)
.cdf Graphics (netcdf)
.cdk Document (Atari Calamus)
.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)
.cfg Configuration
.cfl Chart (CorelFLOW)
.cfn Font data (Atari Calamus)
.cfo C Form Object internal format object file (TCU Turbo C Utilities)
.cfp Fax (The Complete Fax Portable).chd Font descriptor (FontChameleon)
.chi Document (ChiWriter)
.chk Recovered data (ChkDsk)
.chk Temporary file (WordPerfect for Win)
.chl Configuration History Log
.chn Data (Ethnograph 3)
.chp Chapter file (Ventura Publisher)
.chr Character set (Turbo C – Turbo Pascal)
.cht Chart (Harvard Graphics 2.0 – SoftCraft Presenter)
.cht Interface file for ChartMaster (dBASE)
.cif Caltech Intermediate Format graphics
.cif Chapter information (Ventura Publisher)
.cix Database index (TCU Turbo C Utilities)
.ckb Keyboard mapping (Borland C++ 4.5)
.cl Common LISP source code file
.clp Clip art graphics (Quattro Pro)
.clp Clipboard file (Windows 3.x)
.clp Compiler script file (clip list) (Clipper 5)
.clr Color binary screen image (1st Reader)
.clr Color definitions (Photostyler)
.cls C++ class definition file
.cm Data file (CraftMan)
.cmd Batch file (OS/2)
.cmd Command (dBASE – Waffle)
.cmd External command menu (1st Reader)
.cmf FM-music file (Creative Music File)
.cmk Card (Card Shop Plus)
.cmm Cmm script (batch) file (CEnvi)
.cmp Header file for PostScript printer files (CorelDRAW)
.cmp User dictionary (MS Word for DOS)
.cmp Bitmap graphics (Lead CMP compression)
.cmv Animation (CorelMove CorelDraw 4.0)
.cnc CNC general program data
.cnf Configuration (program – printer setup)
.cnv Data conversion support file (Word for Windows)
.cnv Temporary file (WordPerfect for Win)
.cob Cobol source code file
.cod Datafile (Forecast Plus – MS Multiplan – StatPac Gold)
.cod Program compiled code (FORTRAN)
.cod Template source file (dBASE Application Generator)
.cod Videotext file
.col Color palette (Autodesk Animator – many)
.col Spreadsheet (MS Multiplan)
.com Command (memory image of executable program) (DOS)
.con Configuration file (Simdir)
.cpd Script (Complaints Desk)
.cpf Fax (The Complete Fax)
.cpi Code Page Information file (DOS)
.cpi Colorlab Processed Image bitmap graphics
.cpl Control panel file (Windows 3.x)
.cpl Presentation (Compel)
.cpp C++ source code file
.cpp Presentation (CA-Cricket Presents)
.cps Backup of startup files by Central Point PC Tools autoexec.cps
.cps coloured postscript files
.cpt Compressed Mac file archive created by COMPACT PRO (ext-pc.zip)
.cpt Encrypted memo file (dBASE)
.cpt Template (CA-Cricket Presents)
.cpz Music text file (COMPOZ)
.crd Cardfile (Windows 3.x – YourWay)
.crf Cross-reference (MS MASM – Zortech C++)
.crp Encrypted database (dBASE IV)
.crs File Conversion Resource (WordPerfect 5.1)
.crt Terminal settings information (Oracle)
.cru Compressed file archive created by CRUSH
.csg Graph (Statistica/w)
.csm Precompiled headers (Borland C++ 4.5)
.csp Pc Emcee Screen Image file (Computer Support Corporation)
.css Datafile (CSS – Stats+)
.css Datasheet (Statistica/w)
.csv Comma Separated Values text file format (ASCII)
.csv Adjusted EGA/VGA palette (CompuShow)
.ctc Control file (PC Installer)
.ctf Character code translation file (Symphony)
.ctl Control file (dBASE IV – Aldus Setup)
.ctx Course TeXt file (Microsoft online guides)
.ctx Ciphertext file (Pretty Good Privacy RSA System)
.cuf C Utilities Form definition (TCU Turbo C Utilities)
.cur Cursor image file (Windows 3.x)
.cut Bitmap graphics (Dr. Halo)
.cv4 Color file (CodeView)
.cvp Cover page (WinFax)
.cvs Graphics (Canvas)
.cvt Backup file for CONVERTed database file (dBASE IV)
.cvw Color file (CodeView)
.cxx C++ source code file (Zortech C++)
.dat Data file in special format or ASCII
.db Configuration (dBASE IV – dBFast)
.db Database (Paradox – Smartware)
.db$ Temperature debug info (Clarion Modula-2)
.db$ Temporary file (dBASE)
.db2 Database (dBASE II)
.db3 Database (dBASE III)
.dba Datafile (DataEase)
.dbd Business data (Business Insight)
.dbd Debug info (Clarion Modula-2)
.dbf Database file (dBASE III/IV – FoxPro – dBFast – DataBoss)
.dbg Symbolic debugging information (MS C/C++)
.dbk Database backup (dBASE IV)
.dbm Datafile (DataEase)
.dbm Menu template (DataBoss)
.dbo Compiled program (dBASE IV)
.dbs Database in SQL Windows format
.dbs Datafile (PRODAS)
.dbs Printer description file (Word – Works)
.dbt Data Base Text (Clipper)
.dbt Foxbase+ style memo (FoxPro)
.dbt Memo file for database w/same name (dBASE IV – dBFast)
.dbw Windows file (DataBoss)
.dca Document Content Architecture text file (IBM DisplayWrite)
.dcf Disk image file
.dcp Data CodePage (OS/2)
.dcs Bitmap graphics (CYMK format) (QuarkXPress)
.dcs Datafile (ACT! Activity Files)
.dct Database dictionary (Clarion Database Developer)
.dct Spell checking dictionary (Harvard Graphics 3.0 – Symphony)
.dcx Bitmap graphics (Multipage PCX)
.dd Compressed Macintosh file archive created by DISKDOUBLER
.ddb Bitmap graphics
.ddi Diskdupe Image file (ddupe322.zip)
.ddp Device Driver Profile file (OS/2)
.deb Debug script (DOS Debug)
.def Assembly header file (Geoworks)
.def Defaults – definitions
.dem Demonstration
.dem Graphics (VistaPro)
.dev Device driver
.dfd Data Flow Diagram graphic (Prosa)
.dfi Outline font description (Digifont)
.dfl Default program settings (Signature)
.dfm Data Flow Diagram model file (Prosa)
.dfs Delight Sound File
.dfv Printing form (Word)
.dgn Graphics (MicroStation)
.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)
.dif Output from Diff command – script for Patch command
.dif Text file (Data Interchange Format)
.dip Graphics
.dir Dialing directory file (Procomm Plus)
.dir Directory file (VAX)
.dir Movie (MacroMind Director 4.x)
.dis Distribution file (VAX Mail)
.dis Thesaurus (CorelDraw)
.diz Description file (Description In Zip)
.dkb Raytraced graphics (DKBTrace)
.dl Animation (Italian origin)
.dld Data (Lotus 1-2-3)
.dlg Dialog resource script file (MS Windows SDK)
.dll Dynamic Link Library (Windows 3.x – OS/2)
.dll Export/import filter (CorelDRAW)
.dls Setup (Norton Disklock)
.dmo Demo (Derive)
.dmp Dump file (eg. screen or memory)
.dms Compressed Amiga file archive created by DISKMASHER
.doc Document text file
.dog Screen file (Laughing Dog Screen Maker)
.doh Dependency information for .poh (Geoworks)
.dos External command file (1st Reader)
.dos Network driver (eg. pkt_dis.dos)
.dos Text file containing DOS specific info
.dot Line-type definition file (CorelDRAW)
.dot Template (Word for Windows)
.dox Text file (MultiMate 4.0)
.doz Description Out of Zip (VENDINFO)
.dp Calendar file (Daily Planner)
.dp Data file (DataPhile)
.dpr Default project- and state-related information (Borland C++)
.drs Display Resource (WordPerfect for Win)
.drv Device driver eg. for printer
.drw Vector graphics (Micrografx Designer)
.ds4 Vector graphics (Micrografx Designer 4.0)
.dsc Discard file (Oracle)
.dsd Database (DataShaper)
.dsk Project desktop file (Borland C++ – Turbo Pascal)
.dsm Digital sound module (DSI)
.dsn Design (Object System Designer)
.dsp Display parameters (Signature)
.dsp Graphics display driver (Dr.Halo)
.dsr Driver Resource (WordPerfect for Win)
.dss Screensaver file (DCC)
.dss Sound (Digital Soup)
.dsw Desktop settings (Borland C++ 4.5)
.dt_ Data fork of a Macintosh file (Mac-ette)
.dta Data file (Turbo Pascal – PC-File – Stata)
.dtf Database file (PFS – Q&A)
.dtp Document (Timeworks Publisher3)
.dtp Publication (Publish-It!)
.dvc Data (Lotus 1-2-3)
.dvi Device Independent document (TeX)
.dvp Desqview Program Information file (DESQview)
.dvp Device parameter file (AutoCAD)
.dw2 Drawing (DesignCAD for windows)
.dwc Compressed file archive created by DWC (dwc-a501.exe)
.dwg Drawing (Drafix)
.dwg Drawing database (AutoCAD)
.dx Text file (DEC WPS/DX format – DEC WPS Plus)
.dxf Drawing Interchange File Format vector graphics (AutoCAD)
.dxn Fax (Fujitsu dexNET)
.dyn Data (Lotus 1-2-3)
.ebj Error-checking object file (Geoworks)
.edt Default settings (VAX Edt editor)
.eeb Button bar for Equation Editor (WordPerfect for Win)
.eft High resolution screen font (ChiWriter)
.efx Fax (Everex EFax)
.ega EGA display font (Ventura Publisher)
.el Elisp source code file (Emacs lisp)
.elc Compiled ELISP code (Emacs lisp)
.elt Event list text file (Prosa)
.emb Everest Embedded Bank File
.emd ABT Extended Module
.emf Enchanced Metafile graphics
.eml MS Outlook Express Electronic Mail
.ems PC Tools Enhanced Menu System Config
.emu Terminal emulation data (BITCOM)
.enc Encoded file – UUENCODEd file (Lotus 1-2-3 – uuexe515.exe)
.enc Music (Encore)
.end Arrow-head definition file (CorelDRAW)
.eng Dictionary engine (Sprint)
.eng Graphics (charting) (EnerGraphics)
.env Enveloper macro (WOPR)
.env Environment file (WordPerfect for Win)
.epd Publication (Express Publisher)
.epi Document (Express Publisher)
.eps Encapsulated PostScript vector graphics (Adobe Illustrator)
.eps 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
.err Error messages for command line compilers
.esh Extended Shell batch file
.eth Document (Ethnograph 3)
.etx Structure Enhanced (setext) text
.evt Event log
.evy Document (WordPerfect Envoy)
.ewd Document (Express Publisher for Windows)
.ex3 Device driver (Harvard Graphics 3.0)
.exc Rexx source code file (VM/CMS)
.exc Exclude file for Optimize (do not process) (QEMM)
.exe Directly executable program (DOS)
.exm Msdos executable, system-manager compliant (HP calculator)
.ext Extension file (Norton Commander)
.exx Intermediate file by MsgPut (IBM LinkWay)
.ezf Fax (Calculus EZ-Fax)
.f Fortran source code file
.f Compressed file archive created by FREEZE
.f01 Fax (perfectfax)
.f06 Dos screen text font – height 6 pixels (fntcol13.zip)
.f07 Dos screen text font – height 7 pixels (fntcol13.zip)
.f08 Dos screen text font – height 8 pixels (fntcol13.zip)
.f09 Dos screen text font – height 9 pixels (fntcol13.zip)
.f10 Dos screen text font – height 10 pixels (fntcol13.zip)
.f11 Dos screen text font – height 11 pixels (fntcol13.zip)
.f12 Dos screen text font – height 12 pixels (fntcol13.zip)
.f13 Dos screen text font – height 13 pixels (fntcol13.zip)
.f14 Dos screen text font – height 14 pixels (fntcol13.zip)
.f16 Dos screen text font – height 16 pixels (fntcol13.zip)
.f2r Linear module (music) (Farandole)
.f3r Blocked module (music) (Farandole)
.f77 Fortran 77 source code file
.f96 Fax (Frecom FAX96)
.fac Face graphics
.faq Frequently Asked Questions text file
.far Music
.fax Fax (raster graphics) (most Fax programs)
.fc Spell checking dictionary (Harvard Graphics 2.0)
.fcm Binary file patch file (forward compression)(jlpak10.zip)
.fd Declaration file (MS Fortran)
.fd Field offsets for compiler (DataFlex)
.fdw Form (F3 Design and Mapping)
.feb Button bar for Figure Editor (WordPerfect for Win)
.ff Outline font description (Agfa Compugraphics)
.fff Fax (defFax)
.fft Dca/FFT Final Form Text text file (DisplayWrite)
.fh11 Vector graphics (FreeHand 11)
.fi Interface file (MS Fortran)
.fif Fractal Image Format file
.fil File template (Application Generator)
.fil Files list object file (dBASE Application Generator)
.fil Overlay (WordPerfect)
.fin Print-formatted text file (Perfect Writer – Scribble – MINCE)
.fit Fits graphics
.fit File Index Table (WindowsNT)
.fix Patch file
.fky Macro file (FoxPro)
.flb Format library (Papyrus)
.flc Animation (Autodesk Animator)
.fld Folder (Charisma)
.fli Tex font library (EmTeX)
.fli Animation (Autodesk Animator)
.flm Film Roll (AutoCAD/AutoShade)
.flo Micrografx FlowCharter
.flt Filter file (Micrografx Picture Publisher)
.flt Support file (Asymetrix ToolBook) – graphics filter
.flx Compiled binary (DataFlex)
.fm Spreatsheet (FileMaker Pro)
.fm1 Spreadsheet (Lotus 1-2-3 release 2.x)
.fm3 Device driver (Harvard Graphics 3.0)
.fm3 Spreadsheet (Lotus 1-2-3 release 3.x)
.fmb File Manager Button bar (WordPerfect for Win)
.fmf Font or icon file (IBM LinkWay)
.fmk Makefile (Fortran PowerStation)
.fmo Compiled format file (dBASE IV)
.fmt Format file (dBASE IV – FoxPro – Clipper 5 – dBFast)
.fmt Style sheet (Sprint)
.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)
.fon Font file (many – Windows 3.x font library)
.fon Log of all calls (Procomm Plus)
.for Fortran source code file
.for Form (WindowBase)
.fot Installed Truetype font (Windows Font Installer)
.fp Configuration file (FoxPro)
.fpc Catalog (FoxPro)
.fpt Memo (FoxPro)
.fpw Floorplan drawing (FloorPLAN plus for Windows)
.fr3 Renamed dBASE III+ form file (dBASE IV)
.frf Font (FontMonger)
.frg Uncompiled report file (dBASE IV)
.frm Form (Visual Basic)
.frm Report file (dBASE IV – Clipper 5 – dBFast)
.frm 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)
.fsl Form (Paradox for Windows)
.fsm Farandoyle Sample format music
.fst Linkable program (dBFast)
.fsx Data (Lotus 1-2-3)
.ftm Font file (Micrografx)
.ftp Configuration (FTP Software PC/TCP)
.fw Database (FrameWork)
.fw2 Database (Framework II)
.fw3 Database (Framework III)
.fx On-line guide (FastLynx)
.fxd Phonebook (FAXit)
.fxp Compiled format (FoxPro)
.fxs Fax Transmit Format graphics (WinFax)
.g Data chart (APPLAUSE)
.g8 Raw graphics (one byte per pixel) plane three (PicLab)
.gam Fax (GammaFax)
.gbl Global definitions (VAXTPU editor)
.gc1 Lisp source code (Golden Common Lisp 1.1)
.gc3 Lisp source code (Golden Common Lisp 3.1)
.gcd Graphics
.gdf Dictionary file (GEOS)
.ged Editor’s native file format (Arts & Letters)
.ged Graphics editor file (EnerGraphics)
.gem Vector graphics (GEM – Ventura Publisher)
.gen Compiled template (dBASE Application Generator)
.gen Generated text (Ventura Publisher)
.geo Geode (Geoworks)
.gfb Compressed GIF image created by GIFBLAST (gifblast.exe)
.gft Font (NeoPaint)
.gib Chart (Graph-in-the-Box)
.gif Graphics Interchange Format bitmap graphics (CompuShow)
.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)
.gmf CGM graphics (APPLAUSE)
.gmp Geomorph tile map (SPX)
.goc Goc source code file (Geoworks)
.goh Goc header file (Geoworks)
.gp Geode parameter file (Geoworks Glue)
.gph Graph (Lotus 1-2-3/G)
.gpk Omnigo program package
.gr2 Screen driver (Windows 3.x)
.gra Datafile (SigmaPlot).gsw Worksheet (GraphShow)
.gup Data (PopMail)
.gxl Graphics library (Genus)
.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 (ha098.zip)
.hap Compressed file archive created by HAP (hap303re.zip)
.hbk Handbook (Mathcad)
.hdf Hierarchical Data File graphics (SDSC Image Tools)
.hdf Help file (Help Development Kit)
.hdl Alternate download file listing (Procomm Plus)
.hdr Pc-File+ Database header
.hdr Datafile (Egret)
.hdr Message header text (Procomm Plus – 1st Reader)
. for remote users (Procomm Plus)
.hin Molecule (HyperChem)
.hlb Help library (VAX)
.hlp Help information
.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 (hpack75.zip)
.hpm Emm text (HP NewWave)
.hpm Alternate Main menu for privileged users (Procomm Plus)
.hpp C++ header file (Zortech C++)
.hqx Compressed Macintosh ASCII archive created by BINHEX (xbin23.zip)
.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)
.htm HyperText Markup Language document
.htx Hypertext file
.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 (hyper25.zip)
.i Intermediate file (Borland C++ 4.5)
.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
.icl icon library
.icn Icon source code file
.ico Icon (Windows 3.x)
.id Disk identification file
.ide Project (Borland C++ 4.5)
.idw Vector graphics (IntelliDraw)
.idx Index (many – FoxPro)
.ifd Form (JetForm Design)
.iff Interchange File Format bitmap graphics/sound (Amiga)
.iff Sun TAAC Image File Format (SDSC Image Tool)
.ifp Script (KnowledgeMan)
.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)
.inf Information text file (ASCII)
.inf Install script
.ini Initialization file
.ink Pantone reference fills file (CorelDRAW)
.ins Data (WordPerfect)
.ins Installation script (1st Reader)
.ins Instrument music file (Adlib)
.int Borland Interface Units
.int Program saved in Internal (semi-compiled) format (Signature)
.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)
.ipl Pantone Spot reference palette file (CorelDRAW)
.irs Resource (WordPerfect)
.isd Spelling Checker dictionary (RapidFile)
.ish Compressed file archive created by ISH
.iso ISO-9660 table
.it Settings (intalk)
.itf Interface file (JPI TopSpeed Pascal)
.iw Presentation flowchart (IconAuthor – HSC InterActive)
.iwa Text file (IBM Writing Assistant)
.iwp Text file (Wang)
.izt Izl binary token file (IZL)
.jas Graphics
.jav Java source code file
.jbd Datafile (SigmaScan)
.jbx Project file (Project Scheduler 4)
.jet Fax (Hybrid JetFax)
.jff Bitmap graphics (JPEG File Interchange Format)
.jor Journal file SQL
.jou Journal backup (VAX Edt editor)
.jpc Graphics (Japan PIC)
.jpg Bitmap graphics (Joint Photography Experts Group)
.jtf Fax (Hayes JT Fax)
.jtf Bitmap graphics (JPEG Tagged Interchange Format)
.jw Text document (JustWrite)
.jwl Library (JustWrite)
.jzz Spreatsheet (Jazz)
.kar Midi file with karaoke word track
.kb Keyboard script (Borland C++ 4.5)
.kb Program source (Knowledge Pro)
.key Security file eg. Shareware Registration info
.kpp Toolpad (SmartPad)
.kps Ibm KIPS bitmap graphics
.kyb Keyboard mapping (FTP Software PC/TCP)
.l Lex source code file
.l Lisp source code file
.l Linker directive file (WATCOM wlink)
.lab Datafile (NCSS – SOLO)
.lab Mailing labels (Q+E for MS Excel)
.lay Word chart layout (APPLAUSE)
.lbg Label generator data (dBASE IV)
.lbl Label (dBASE IV – Clipper 5 – dBFast)
.lbm Bitmap graphics (DeluxePaint)
.lbm Linear bitmap graphics (XLib)
.lbo Compiled label (dBASE IV)
.lbr Compressed file archive created by LU (lue220.arc)
.lbr 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)
.les Lesson (check *.cbt)
.lev Level file (NetHack 3.x)
.lex Lexicon (dictionary) (many)
.lim Compressed file archive created by LIMIT (limit12.zip)
.lin Line types (AutoCAD)
.lis Listing (VAX)
.lj Text file for HP LJ II printer
.ll3 Laplink III related file (document) (LapLink III)
.lnk Linker response file (.RTLink)
.lod Load file
.log Log file
.lpc Printer driver (TEKO)
.lrf Linker response file (MS C/C++)
.lrs Language Resource File (WordPerfect for Win)
.lsl Lotus Script Library
.lsp Lisp source code file (Xlisp)
.lss Spreadsheet (Legato)
.lst Keyboard macro (1st Reader)
.lst List file (archive index – compiler listfile)
.lst Spool file (Oracle)
.ltm Form (Lotus Forms)
.lwd Text document (LotusWorks)
.lwp Lotus Wordpro 96/97 File
.lwz MS Linguistically Enhanced Sound File
.lyr DataCAD Layer File
.3fx Effect (CorelChart)
.3gr Data file (Windows Video Grabber)
.3t4 Binary file converter to ASCII (Util3)
.4c$ Datafile (4Cast/2)
.4sw 4dos Swap File
.4th Forth source code file (ForthCMP – LMI Forth)
.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)
.a Ada source code file
.a Library (unix)
.a11 Graphics AIIM image file
.ab6 Datafile (ABStat)
.ab8 Datafile (ABStat)
.abk Automatic backup file (CorelDRAW)
.abs Abstracts (info file)
.abs Data file (Abscissa)
.aca Project (Project Manager Workbench)
.acb Graphics (ACMB)
.acc Program (DR-DOS – ViewMax) (GEM / resident)
.act Actor source code file
.act Foxdoc Action Diagrams (FoxPro)
.act Presentation (Action!)
.ad Screen saver data (AfterDark)
.ada Ada source code file
.adb Ada Package Body
.adc Bitmap graphics (16 colors) (Scanstudio)
.adi Graphics (AutoCAD)
.adl Mca adapter description library (QEMM)
.ai Vector graphics (Adobe Illustrator)
.ain Compressed file archive created by AIN
.aio APL file transfer format file
.ais Array of Intensity Samples graphics (Xerox)
.aix Datafile for cardfile application (HP NewWave)
.all Format file for working pages (Always)
.all General printer information (WordPerfect for Win)
.all Symbol and font files (Arts & Letters)
.alt Menu file (WordPerfect Library)
.amf Music (Advanced Module Format)
.amg Compressed file archive created by AMGC
.amg System image file (Actor)
.ani Animation (Presidio – many)
.anm Animation (Deluxe Paint Animator)
.ann Help Annotations (Windows 3.x)
.ans Ansi graphics (character animation)
.ans Ascii text ANSI character set (NewWave Write)
.aos Add-On Software (Nokia 9000)
.ap Compressed Amiga file archive created by WHAP
.ap Datafile (Datalex EntryPoint 90)
.apc Printer driver (Lotus 1-2-3)
.apd Printer driver (Lotus 1-2-3)
.apf Printer driver (Lotus 1-2-3)
.api Passed parameter file (1st Reader)
.api Printer driver (Lotus 1-2-3)
.apl APL work space format file
.app Add-in application file (Symphony)
.arf Automatic Response File
.ari Compressed file archive created by ARI
.arj Compressed file archive created by ARJ (arj241.exe)
.ark Arc file archive created by CP/M port of ARC file archiver
.ark Compressed file archive created by QUARK
.arr Arrangement (Atari Cubase)
.art Graphics (scrapbook) (Art Import)
.art Raster graphics (First Publisher)
.arx Compressed file archive created by ARX
.asc Ascii text file
.asc Transport armor file (PGP)
.asd Autosave file (Word for Windows)
.asd Presentation (Astound)
.asd Screen driver (Lotus 1-2-3)
.asf Datafile (STATGRAPHICS)
.asf Screen font (Lotus 1-2-3)
.ash Assembly language header file (TASM 3.0)
.asi Assembler include file (Turbo C – Borland C++)
.asm Assembly source code file
.ava Publication (Avagio)
.avi Audio Video Interleaved animation file (Video for Windows)
.aw Text file (HP AdvanceWrite)
.awk Awk script/program
.awm Movie (Animation Works)
.aws Data (STATGRAPHICS)
.b Batch list (APPLAUSE)
.b&w Black and white graphics (atari – mac)
.b&w Mono binary screen image (1st Reader)
.b1n Both mono and color binary screen image (1st Reader)
.b30 Printer font (JLaser – Cordata) (Ventura Publisher)
.b8 Raw graphics (one byte per pixel) plane two (PicLab)
.b_w Black and white graphics (atari – mac)
.bad Bad file (Oracle)
.bak Backup file)
.bbm Brush (Deluxe Paint)
.bbs Bulletin Board System announce or text info file
.bch Batch process object file (dBASE Application Generator)
.bch Datafile (Datalex EntryPoint 90)
.bco Outline font description (Bitstream)
.bcp Borland C++ makefile
.bcw Environment settings (Borland C++ 4.5)
.bdf Bitmap Distribution Format font file (X11)
.bdf 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
.bgi Borland Graphics Interface device driver
.bib Bibliography (ASCII)
.bib Database – not compatible with TeX format (Papyrus)
.bib Literature database (TeX/BibTeX)
.bif Binary Image Format b&w graphics (Image Capture board)
.bin Binary file
.bio OS/2 BIOS
.bit Bitmap X11
.bk Faxbook (JetFax)
.bk! Document backup (WordPerfect for Win)..bkw Mirror image of font set (FontEdit)
.bld Bloadable picture (BASIC)
.blk Temporary file (WordPerfect for Win)
.bm Bitmap graphics
.bmk Help Bookmarks (Windows 3.x)
.bmp Bitmap graphics (PC Paintbrush – many)
.bnk Adlib instrument bank file
.boo Compressed file ASCII archive created by BOO (msbooasm.arc)
.bpc Chart (Business Plan Toolkit)
.bpt Bitmap fills file (CorelDRAW)
.br Script (Bridge)
.brd Eagle Layout File
.brk Fax (Brooktrout Fax-Mail)
.bsa Compressed file archive created by BSARC
.bsc Compressed Apple II file archive created by BINSCII
.bsc Database (Source Browser)
.bsc Pwbrmake object file (MS Fortran)
.btm Batch To Memory batch file (4DOS)
.bug Bugs and Problems
.bup Backup file
.but Button definitions (Buttons!)
.buy Datafile format (movie).
.bwr Beware (buglist) (Kermit)
.c C source code file
.c Compressed unix file archive created by COMPACT
.c++ C++ source code file
.c– Source code (Sphinx C–)
.c00 Print file (Ventura Publisher)
.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)
.cal Calendar file (Windows 3.x)
.cal Spreatsheet (SuperCalc)
.can Fax (Navigator Fax)
.cap Caption (Ventura Publisher)
.cap Session capture file (Telix)
.cas Comma-delimited ASCII File
.cat Catalog (dBASE IV)
.cbc Fuzzy logic system (CubiCalc)
.cbl Cobol source code file
.cbm Compiled bitmap graphics (XLib)
.cbt Computer Based Training (many)
.cc C++ source code file
.ccb Visual Basic Animated Button Configuration
.ccc Bitmap graphics (native format) (Curtain Call)
.ccf Communications configuration file (Symphony)
.cch Chart (CorelChart)
.ccl Communication Command Language file (Intalk)
.cco Btx Graphics file (XBTX)
.cdb Card database (CardScan)
.cdb Main database (TCU Turbo C Utilities)
.cdf Graphics (netcdf)
.cdk Document (Atari Calamus)
.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)
.cfg Configuration
.cfl Chart (CorelFLOW)
.cfn Font data (Atari Calamus)
.cfo C Form Object internal format object file (TCU Turbo C Utilities)
.cfp Fax (The Complete Fax Portable).chd Font descriptor (FontChameleon)
.chi Document (ChiWriter)
.chk Recovered data (ChkDsk)
.chk Temporary file (WordPerfect for Win)
.chl Configuration History Log
.chn Data (Ethnograph 3)
.chp Chapter file (Ventura Publisher)
.chr Character set (Turbo C – Turbo Pascal)
.cht Chart (Harvard Graphics 2.0 – SoftCraft Presenter)
.cht Interface file for ChartMaster (dBASE)
.cif Caltech Intermediate Format graphics
.cif Chapter information (Ventura Publisher)
.cix Database index (TCU Turbo C Utilities)
.ckb Keyboard mapping (Borland C++ 4.5)
.cl Common LISP source code file
.clp Clip art graphics (Quattro Pro)
.clp Clipboard file (Windows 3.x)
.clp Compiler script file (clip list) (Clipper 5)
.clr Color binary screen image (1st Reader)
.clr Color definitions (Photostyler)
.cls C++ class definition file
.cm Data file (CraftMan)
.cmd Batch file (OS/2)
.cmd Command (dBASE – Waffle)
.cmd External command menu (1st Reader)
.cmf FM-music file (Creative Music File)
.cmk Card (Card Shop Plus)
.cmm Cmm script (batch) file (CEnvi)
.cmp Header file for PostScript printer files (CorelDRAW)
.cmp User dictionary (MS Word for DOS)
.cmp Bitmap graphics (Lead CMP compression)
.cmv Animation (CorelMove CorelDraw 4.0)
.cnc CNC general program data
.cnf Configuration (program – printer setup)
.cnv Data conversion support file (Word for Windows)
.cnv Temporary file (WordPerfect for Win)
.cob Cobol source code file
.cod Datafile (Forecast Plus – MS Multiplan – StatPac Gold)
.cod Program compiled code (FORTRAN)
.cod Template source file (dBASE Application Generator)
.cod Videotext file
.col Color palette (Autodesk Animator – many)
.col Spreadsheet (MS Multiplan)
.com Command (memory image of executable program) (DOS)
.con Configuration file (Simdir)
.cpd Script (Complaints Desk)
.cpf Fax (The Complete Fax)
.cpi Code Page Information file (DOS)
.cpi Colorlab Processed Image bitmap graphics
.cpl Control panel file (Windows 3.x)
.cpl Presentation (Compel)
.cpp C++ source code file
.cpp Presentation (CA-Cricket Presents)
.cps Backup of startup files by Central Point PC Tools autoexec.cps
.cps coloured postscript files
.cpt Compressed Mac file archive created by COMPACT PRO (ext-pc.zip)
.cpt Encrypted memo file (dBASE)
.cpt Template (CA-Cricket Presents)
.cpz Music text file (COMPOZ)
.crd Cardfile (Windows 3.x – YourWay)
.crf Cross-reference (MS MASM – Zortech C++)
.crp Encrypted database (dBASE IV)
.crs File Conversion Resource (WordPerfect 5.1)
.crt Terminal settings information (Oracle)
.cru Compressed file archive created by CRUSH
.csg Graph (Statistica/w)
.csm Precompiled headers (Borland C++ 4.5)
.csp Pc Emcee Screen Image file (Computer Support Corporation)
.css Datafile (CSS – Stats+)
.css Datasheet (Statistica/w)
.csv Comma Separated Values text file format (ASCII)
.csv Adjusted EGA/VGA palette (CompuShow)
.ctc Control file (PC Installer)
.ctf Character code translation file (Symphony)
.ctl Control file (dBASE IV – Aldus Setup)
.ctx Course TeXt file (Microsoft online guides)
.ctx Ciphertext file (Pretty Good Privacy RSA System)
.cuf C Utilities Form definition (TCU Turbo C Utilities)
.cur Cursor image file (Windows 3.x)
.cut Bitmap graphics (Dr. Halo)
.cv4 Color file (CodeView)
.cvp Cover page (WinFax)
.cvs Graphics (Canvas)
.cvt Backup file for CONVERTed database file (dBASE IV)
.cvw Color file (CodeView)
.cxx C++ source code file (Zortech C++)
.dat Data file in special format or ASCII
.db Configuration (dBASE IV – dBFast)
.db Database (Paradox – Smartware)
.db$ Temperature debug info (Clarion Modula-2)
.db$ Temporary file (dBASE)
.db2 Database (dBASE II)
.db3 Database (dBASE III)
.dba Datafile (DataEase)
.dbd Business data (Business Insight)
.dbd Debug info (Clarion Modula-2)
.dbf Database file (dBASE III/IV – FoxPro – dBFast – DataBoss)
.dbg Symbolic debugging information (MS C/C++)
.dbk Database backup (dBASE IV)
.dbm Datafile (DataEase)
.dbm Menu template (DataBoss)
.dbo Compiled program (dBASE IV)
.dbs Database in SQL Windows format
.dbs Datafile (PRODAS)
.dbs Printer description file (Word – Works)
.dbt Data Base Text (Clipper)
.dbt Foxbase+ style memo (FoxPro)
.dbt Memo file for database w/same name (dBASE IV – dBFast)
.dbw Windows file (DataBoss)
.dca Document Content Architecture text file (IBM DisplayWrite)
.dcf Disk image file
.dcp Data CodePage (OS/2)
.dcs Bitmap graphics (CYMK format) (QuarkXPress)
.dcs Datafile (ACT! Activity Files)
.dct Database dictionary (Clarion Database Developer)
.dct Spell checking dictionary (Harvard Graphics 3.0 – Symphony)
.dcx Bitmap graphics (Multipage PCX)
.dd Compressed Macintosh file archive created by DISKDOUBLER
.ddb Bitmap graphics
.ddi Diskdupe Image file (ddupe322.zip)
.ddp Device Driver Profile file (OS/2)
.deb Debug script (DOS Debug)
.def Assembly header file (Geoworks)
.def Defaults – definitions
.dem Demonstration
.dem Graphics (VistaPro)
.dev Device driver
.dfd Data Flow Diagram graphic (Prosa)
.dfi Outline font description (Digifont)
.dfl Default program settings (Signature)
.dfm Data Flow Diagram model file (Prosa)
.dfs Delight Sound File
.dfv Printing form (Word)
.dgn Graphics (MicroStation)
.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)
.dif Output from Diff command – script for Patch command
.dif Text file (Data Interchange Format)
.dip Graphics
.dir Dialing directory file (Procomm Plus)
.dir Directory file (VAX)
.dir Movie (MacroMind Director 4.x)
.dis Distribution file (VAX Mail)
.dis Thesaurus (CorelDraw)
.diz Description file (Description In Zip)
.dkb Raytraced graphics (DKBTrace)
.dl Animation (Italian origin)
.dld Data (Lotus 1-2-3)
.dlg Dialog resource script file (MS Windows SDK)
.dll Dynamic Link Library (Windows 3.x – OS/2)
.dll Export/import filter (CorelDRAW)
.dls Setup (Norton Disklock)
.dmo Demo (Derive)
.dmp Dump file (eg. screen or memory)
.dms Compressed Amiga file archive created by DISKMASHER
.doc Document text file
.dog Screen file (Laughing Dog Screen Maker)
.doh Dependency information for .poh (Geoworks)
.dos External command file (1st Reader)
.dos Network driver (eg. pkt_dis.dos)
.dos Text file containing DOS specific info
.dot Line-type definition file (CorelDRAW)
.dot Template (Word for Windows)
.dox Text file (MultiMate 4.0)
.doz Description Out of Zip (VENDINFO)
.dp Calendar file (Daily Planner)
.dp Data file (DataPhile)
.dpr Default project- and state-related information (Borland C++)
.drs Display Resource (WordPerfect for Win)
.drv Device driver eg. for printer
.drw Vector graphics (Micrografx Designer)
.ds4 Vector graphics (Micrografx Designer 4.0)
.dsc Discard file (Oracle)
.dsd Database (DataShaper)
.dsk Project desktop file (Borland C++ – Turbo Pascal)
.dsm Digital sound module (DSI)
.dsn Design (Object System Designer)
.dsp Display parameters (Signature)
.dsp Graphics display driver (Dr.Halo)
.dsr Driver Resource (WordPerfect for Win)
.dss Screensaver file (DCC)
.dss Sound (Digital Soup)
.dsw Desktop settings (Borland C++ 4.5)
.dt_ Data fork of a Macintosh file (Mac-ette)
.dta Data file (Turbo Pascal – PC-File – Stata)
.dtf Database file (PFS – Q&A)
.dtp Document (Timeworks Publisher3)
.dtp Publication (Publish-It!)
.dvc Data (Lotus 1-2-3)
.dvi Device Independent document (TeX)
.dvp Desqview Program Information file (DESQview)
.dvp Device parameter file (AutoCAD)
.dw2 Drawing (DesignCAD for windows)
.dwc Compressed file archive created by DWC (dwc-a501.exe)
.dwg Drawing (Drafix)
.dwg Drawing database (AutoCAD)
.dx Text file (DEC WPS/DX format – DEC WPS Plus)
.dxf Drawing Interchange File Format vector graphics (AutoCAD)
.dxn Fax (Fujitsu dexNET)
.dyn Data (Lotus 1-2-3)
.ebj Error-checking object file (Geoworks)
.edt Default settings (VAX Edt editor)
.eeb Button bar for Equation Editor (WordPerfect for Win)
.eft High resolution screen font (ChiWriter)
.efx Fax (Everex EFax)
.ega EGA display font (Ventura Publisher)
.el Elisp source code file (Emacs lisp)
.elc Compiled ELISP code (Emacs lisp)
.elt Event list text file (Prosa)
.emb Everest Embedded Bank File
.emd ABT Extended Module
.emf Enchanced Metafile graphics
.eml MS Outlook Express Electronic Mail
.ems PC Tools Enhanced Menu System Config
.emu Terminal emulation data (BITCOM)
.enc Encoded file – UUENCODEd file (Lotus 1-2-3 – uuexe515.exe)
.enc Music (Encore)
.end Arrow-head definition file (CorelDRAW)
.eng Dictionary engine (Sprint)
.eng Graphics (charting) (EnerGraphics)
.env Enveloper macro (WOPR)
.env Environment file (WordPerfect for Win)
.epd Publication (Express Publisher)
.epi Document (Express Publisher)
.eps Encapsulated PostScript vector graphics (Adobe Illustrator)
.eps 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
.err Error messages for command line compilers
.esh Extended Shell batch file
.eth Document (Ethnograph 3)
.etx Structure Enhanced (setext) text
.evt Event log
.evy Document (WordPerfect Envoy)
.ewd Document (Express Publisher for Windows)
.ex3 Device driver (Harvard Graphics 3.0)
.exc Rexx source code file (VM/CMS)
.exc Exclude file for Optimize (do not process) (QEMM)
.exe Directly executable program (DOS)
.exm Msdos executable, system-manager compliant (HP calculator)
.ext Extension file (Norton Commander)
.exx Intermediate file by MsgPut (IBM LinkWay)
.ezf Fax (Calculus EZ-Fax)
.f Fortran source code file
.f Compressed file archive created by FREEZE
.f01 Fax (perfectfax)
.f06 Dos screen text font – height 6 pixels (fntcol13.zip)
.f07 Dos screen text font – height 7 pixels (fntcol13.zip)
.f08 Dos screen text font – height 8 pixels (fntcol13.zip)
.f09 Dos screen text font – height 9 pixels (fntcol13.zip)
.f10 Dos screen text font – height 10 pixels (fntcol13.zip)
.f11 Dos screen text font – height 11 pixels (fntcol13.zip)
.f12 Dos screen text font – height 12 pixels (fntcol13.zip)
.f13 Dos screen text font – height 13 pixels (fntcol13.zip)
.f14 Dos screen text font – height 14 pixels (fntcol13.zip)
.f16 Dos screen text font – height 16 pixels (fntcol13.zip)
.f2r Linear module (music) (Farandole)
.f3r Blocked module (music) (Farandole)
.f77 Fortran 77 source code file
.f96 Fax (Frecom FAX96)
.fac Face graphics
.faq Frequently Asked Questions text file
.far Music
.fax Fax (raster graphics) (most Fax programs)
.fc Spell checking dictionary (Harvard Graphics 2.0)
.fcm Binary file patch file (forward compression)(jlpak10.zip)
.fd Declaration file (MS Fortran)
.fd Field offsets for compiler (DataFlex)
.fdw Form (F3 Design and Mapping)
.feb Button bar for Figure Editor (WordPerfect for Win)
.ff Outline font description (Agfa Compugraphics)
.fff Fax (defFax)
.fft Dca/FFT Final Form Text text file (DisplayWrite)
.fh11 Vector graphics (FreeHand 11)
.fi Interface file (MS Fortran)
.fif Fractal Image Format file
.fil File template (Application Generator)
.fil Files list object file (dBASE Application Generator)
.fil Overlay (WordPerfect)
.fin Print-formatted text file (Perfect Writer – Scribble – MINCE)
.fit Fits graphics
.fit File Index Table (WindowsNT)
.fix Patch file
.fky Macro file (FoxPro)
.flb Format library (Papyrus)
.flc Animation (Autodesk Animator)
.fld Folder (Charisma)
.fli Tex font library (EmTeX)
.fli Animation (Autodesk Animator)
.flm Film Roll (AutoCAD/AutoShade)
.flo Micrografx FlowCharter
.flt Filter file (Micrografx Picture Publisher)
.flt Support file (Asymetrix ToolBook) – graphics filter
.flx Compiled binary (DataFlex)
.fm Spreatsheet (FileMaker Pro)
.fm1 Spreadsheet (Lotus 1-2-3 release 2.x)
.fm3 Device driver (Harvard Graphics 3.0)
.fm3 Spreadsheet (Lotus 1-2-3 release 3.x)
.fmb File Manager Button bar (WordPerfect for Win)
.fmf Font or icon file (IBM LinkWay)
.fmk Makefile (Fortran PowerStation)
.fmo Compiled format file (dBASE IV)
.fmt Format file (dBASE IV – FoxPro – Clipper 5 – dBFast)
.fmt Style sheet (Sprint)
.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)
.fon Font file (many – Windows 3.x font library)
.fon Log of all calls (Procomm Plus)
.for Fortran source code file
.for Form (WindowBase)
.fot Installed Truetype font (Windows Font Installer)
.fp Configuration file (FoxPro)
.fpc Catalog (FoxPro)
.fpt Memo (FoxPro)
.fpw Floorplan drawing (FloorPLAN plus for Windows)
.fr3 Renamed dBASE III+ form file (dBASE IV)
.frf Font (FontMonger)
.frg Uncompiled report file (dBASE IV)
.frm Form (Visual Basic)
.frm Report file (dBASE IV – Clipper 5 – dBFast)
.frm 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)
.fsl Form (Paradox for Windows)
.fsm Farandoyle Sample format music
.fst Linkable program (dBFast)
.fsx Data (Lotus 1-2-3)
.ftm Font file (Micrografx)
.ftp Configuration (FTP Software PC/TCP)
.fw Database (FrameWork)
.fw2 Database (Framework II)
.fw3 Database (Framework III)
.fx On-line guide (FastLynx)
.fxd Phonebook (FAXit)
.fxp Compiled format (FoxPro)
.fxs Fax Transmit Format graphics (WinFax)
.g Data chart (APPLAUSE)
.g8 Raw graphics (one byte per pixel) plane three (PicLab)
.gam Fax (GammaFax)
.gbl Global definitions (VAXTPU editor)
.gc1 Lisp source code (Golden Common Lisp 1.1)
.gc3 Lisp source code (Golden Common Lisp 3.1)
.gcd Graphics
.gdf Dictionary file (GEOS)
.ged Editor’s native file format (Arts & Letters)
.ged Graphics editor file (EnerGraphics)
.gem Vector graphics (GEM – Ventura Publisher)
.gen Compiled template (dBASE Application Generator)
.gen Generated text (Ventura Publisher)
.geo Geode (Geoworks)
.gfb Compressed GIF image created by GIFBLAST (gifblast.exe)
.gft Font (NeoPaint)
.gib Chart (Graph-in-the-Box)
.gif Graphics Interchange Format bitmap graphics (CompuShow)
.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)
.gmf CGM graphics (APPLAUSE)
.gmp Geomorph tile map (SPX)
.goc Goc source code file (Geoworks)
.goh Goc header file (Geoworks)
.gp Geode parameter file (Geoworks Glue)
.gph Graph (Lotus 1-2-3/G)
.gpk Omnigo program package
.gr2 Screen driver (Windows 3.x)
.gra Datafile (SigmaPlot).gsw Worksheet (GraphShow)
.gup Data (PopMail)
.gxl Graphics library (Genus)
.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 (ha098.zip)
.hap Compressed file archive created by HAP (hap303re.zip)
.hbk Handbook (Mathcad)
.hdf Hierarchical Data File graphics (SDSC Image Tools)
.hdf Help file (Help Development Kit)
.hdl Alternate download file listing (Procomm Plus)
.hdr Pc-File+ Database header
.hdr Datafile (Egret)
.hdr Message header text (Procomm Plus – 1st Reader)
. for remote users (Procomm Plus)
.hin Molecule (HyperChem)
.hlb Help library (VAX)
.hlp Help information
.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 (hpack75.zip)
.hpm Emm text (HP NewWave)
.hpm Alternate Main menu for privileged users (Procomm Plus)
.hpp C++ header file (Zortech C++)
.hqx Compressed Macintosh ASCII archive created by BINHEX (xbin23.zip)
.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)
.htm HyperText Markup Language document
.htx Hypertext file
.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 (hyper25.zip)
.i Intermediate file (Borland C++ 4.5)
.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
.icl icon library
.icn Icon source code file
.ico Icon (Windows 3.x)
.id Disk identification file
.ide Project (Borland C++ 4.5)
.idw Vector graphics (IntelliDraw)
.idx Index (many – FoxPro)
.ifd Form (JetForm Design)
.iff Interchange File Format bitmap graphics/sound (Amiga)
.iff Sun TAAC Image File Format (SDSC Image Tool)
.ifp Script (KnowledgeMan)
.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)
.inf Information text file (ASCII)
.inf Install script
.ini Initialization file
.ink Pantone reference fills file (CorelDRAW)
.ins Data (WordPerfect)
.ins Installation script (1st Reader)
.ins Instrument music file (Adlib)
.int Borland Interface Units
.int Program saved in Internal (semi-compiled) format (Signature)
.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)
.ipl Pantone Spot reference palette file (CorelDRAW)
.irs Resource (WordPerfect)
.isd Spelling Checker dictionary (RapidFile)
.ish Compressed file archive created by ISH
.iso ISO-9660 table
.it Settings (intalk)
.itf Interface file (JPI TopSpeed Pascal)
.iw Presentation flowchart (IconAuthor – HSC InterActive)
.iwa Text file (IBM Writing Assistant)
.iwp Text file (Wang)
.izt Izl binary token file (IZL)
.jas Graphics
.jav Java source code file
.jbd Datafile (SigmaScan)
.jbx Project file (Project Scheduler 4)
.jet Fax (Hybrid JetFax)
.jff Bitmap graphics (JPEG File Interchange Format)
.jor Journal file SQL
.jou Journal backup (VAX Edt editor)
.jpc Graphics (Japan PIC)
.jpg Bitmap graphics (Joint Photography Experts Group)
.jtf Fax (Hayes JT Fax)
.jtf Bitmap graphics (JPEG Tagged Interchange Format)
.jw Text document (JustWrite)
.jwl Library (JustWrite)
.jzz Spreatsheet (Jazz)
.kar Midi file with karaoke word track
.kb Keyboard script (Borland C++ 4.5)
.kb Program source (Knowledge Pro)
.key Security file eg. Shareware Registration info
.kpp Toolpad (SmartPad)
.kps Ibm KIPS bitmap graphics
.kyb Keyboard mapping (FTP Software PC/TCP)
.l Lex source code file
.l Lisp source code file
.l Linker directive file (WATCOM wlink)
.lab Datafile (NCSS – SOLO)
.lab Mailing labels (Q+E for MS Excel)
.lay Word chart layout (APPLAUSE)
.lbg Label generator data (dBASE IV)
.lbl Label (dBASE IV – Clipper 5 – dBFast)
.lbm Bitmap graphics (DeluxePaint)
.lbm Linear bitmap graphics (XLib)
.lbo Compiled label (dBASE IV)
.lbr Compressed file archive created by LU (lue220.arc)
.lbr 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)
.les Lesson (check *.cbt)
.lev Level file (NetHack 3.x)
.lex Lexicon (dictionary) (many)
.lim Compressed file archive created by LIMIT (limit12.zip)
.lin Line types (AutoCAD)
.lis Listing (VAX)
.lj Text file for HP LJ II printer
.ll3 Laplink III related file (document) (LapLink III)
.lnk Linker response file (.RTLink)
.lod Load file
.log Log file
.lpc Printer driver (TEKO)
.lrf Linker response file (MS C/C++)
.lrs Language Resource File (WordPerfect for Win)
.lsl Lotus Script Library
.lsp Lisp source code file (Xlisp)
.lss Spreadsheet (Legato)
.lst Keyboard macro (1st Reader)
.lst List file (archive index – compiler listfile)
.lst Spool file (Oracle)
.ltm Form (Lotus Forms)
.lwd Text document (LotusWorks)
.lwp Lotus Wordpro 96/97 File
.lwz MS Linguistically Enhanced Sound File
.lyr DataCAD Layer File
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