file extension Windows/OS2/Apple/Unix/Dos

File ExtensionsWindows/OS2/Apple/UNIX

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E = EEL macro language(Epsilon Editor )
E00 = ArcInfo Coverage Export File
E00 = ESRI map file export
E01 = Arj auto-extractable archiv
E08 = wisosparbuch2008file open with: "%ProgramFiles%\WISO\Sparbuch 2008\wiso2008.exe" "%1"
E09 = wisosparbuch2009file open with: "%Applications%\WisoSpar2009\wiso2009.exe" "%1"
E32 = Inno Setup 1.3 file
E3D = Instant3D Project
E3D = Macromedia Extreme3D object
E99 = Steuer99 Daten file
E_E = Eru file
EA3 = Game: fifa 2001 data enviro file
EAC = EmEditor Auto Completion File
EADB = (MAC FILE_TYPE) Now Contact Print File
EAL = Enfocus Action List
EAL = Easel programming language source code
EAM = France98 football game audio file
EAS = OS/2 extended file attributes
EASMX = Windows.XPSReachViewer open with: %SystemRoot%\System32\xpsrchvw.exe "%1" %* PerceivedType document PerceivedType document Content Type model/vnd.easmx+xps
EBJ = Geoworks error-checking object file
EBK = Mime: application/x-expandedbook
EBO = Microsoft Reader Ebook Format
EBS = Rational Rose 98 script source
EBU = EBU subtitling data exchange file format
EBX = Rational Rose 98 compiled script
EC = Preprocessed GOC source code file (error-checking version) (Geoworks)
ECARD = eCard (Exchanage Card) format phone index or phone book format
ECC = Ecchi image format
ECD = Easy Clean Data File ( Configuration )
ECELP4800 = Mime: audio/vnd.nuera.ecelp4800
ECELP7470 = Mime: audio/vnd.nuera.ecelp7470
ECF = Micrografx Media Manager
ECF = Microsoft Office 97 Add-in configuration
ECG = Preprocessed GOC source code file (error-checking version) (Geoworks)
ECI = Exact id , Cleaning and Info file
ECL = Active Media ECLipse (screensaver maker)
ECM = Cmpro examples file
ECO = Orchestria Active Policy Management ( ) Executive Console configuration information.
ecpg = (MAC FILE_TYPE) Text Extension
ECS = Easy Clean Selection
ECT = System Dll Epic.ect file
ECW = Enhanced Compressed Wavelet image format
ECW = System Dll file
ECW2002PUZZLE = EclipseCrossword Puzzle
ECW2002WORDS = EclipseCrossword Word List
ED = Tmx Editor file
ED5 = EDMICS bitmap (DOD)
ED6 = Bitmap; EDMICS
EDA = Ensoniq ASR disk image
EDC = Kryptel (light) Decoder/Encoder
EDD = Element Definition Document (FrameMaker+SGML documents)
EDE = Ensoniq EPS disk image
EDF = Drumbeat (Internet application) component
EDIF = Electronic Design Interchange Format
EDK = Ensoniq KT disk image
EDL = Module musical Edlib
EDM = Active Media Eclipse Data Module
EDM = Mime: application/vnd.novadigm.EDM
EDMX = VisualStudio.edmx.9.0 open with: "%ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe" /dde
EDMX = VisualStudio.edmx.9.0 open with: "C:\Programme\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe" /dde
EDN = EDNActivation open with: "%ProgramFiles%\Adobe\Acrobat 7.0\Reader\AcroRd32.exe" "%1" Content Type application/vnd.adobe.edn
EDN = EDNActivation open with: "C:\Programme\Adobe\Acrobat 7.0\Reader\AcroRd32.exe" "%1" Content Type application/vnd.adobe.edn
EDOC = (MAC FILE_TYPE) EHelp Document
EDP = Attachmate Extra! Session
EDQ = Ensoniq SQ1/SQ2/KS32 disk image
EDRWX = Windows.XPSReachViewer open with: %SystemRoot%\System32\xpsrchvw.exe "%1" %* PerceivedType document PerceivedType document Content Type model/vnd.edrwx+xps
EDS = Ensoniq SQ80 disk image
EDT = External editors definitions (DN)
EDT = VAX EDT editor default settings
EDTV = (MAC FILE_TYPE) Now Contact Detail Fil
EDV = Ensoniq VFX-SD disk image
EDW = eDrawings SolidWorks Corp
EDX = Mime: application/vnd.novadigm.EDX
EEB = WordPerfect for Win Equation editor button bar
EENV = (MAC FILE_TYPE) Now Contact Envelope
EEP = Microprocessor's eeprom file
EER = Lahey Fortran execution error messages
EFA = Ensoniq ASR file
EFAX = (MAC FILE_TYPE) Now Contact Fax Form
EFC = Effect
EFE = Ensoniq EPS file
EFE = sound file
EFFECT = effectfile open with: "%ProgramFiles%\Arturia\Storm 3.0 demo\storm.exe" "%1"
EFK = Ensoniq KT file
EFM = Equation FontMetrics
EFQ = Ensoniq SQ1/SQ2/KS32 file
EFS = Ensoniq SQ80 file
EFS = FlowChart; EasyFlow 6.x-8.x
EFT = ChiWriter high resolution screen font
EFV = Ensoniq VFX-SD file
EFX = Fax (Everex EFax)
EGA = Bitmap. Same as BMP. Saved in EGA resolution / MRBC.EXE
EGA = Ventura Publisher EGA display font
EGG = Game: wer wird millionaer Data Screens file
EggP = (MAC FILE TYPE) After Effects' project file
EggP = (MAC FILE TYPE) After Effects' project file (PC ext: AEP)
EI = Electric Image image format
EI6 = Mime: application/
EID = "IBM Voice Type" languages Newuser file
EIDI = Bitmap image (Electric Image EIDI file)
EIT = E-Icons Thème (Windows)
EKA = Borland's Eureka internal data files
EKM = Keyboard macro definitions (The Scientific Word Processor)
EL = Emacs Lisp programming language source code
EL = Mime: text/x-script.elisp
EL1 = file.el1 open with: %ProgramFiles%\Canon\Easy-PhotoPrint EX\CNEZMAIN.EXE "%1"
EL2 = file.el2 open with: %ProgramFiles%\Canon\Easy-PhotoPrint EX\CNEZMAIN.EXE "%1"
EL3 = file.el3 open with: %ProgramFiles%\Canon\Easy-PhotoPrint EX\CNEZMAIN.EXE "%1"
EL4 = file.el4 open with: %ProgramFiles%\Canon\Easy-PhotoPrint EX\CNEZMAIN.EXE "%1"
EL5 = file.el5 open with: %ProgramFiles%\Canon\Easy-PhotoPrint EX\CNEZMAIN.EXE "%1"
EL6 = file.el6 open with: %ProgramFiles%\Canon\Easy-PhotoPrint EX\CNEZMAIN.EXE "%1"
ELBL = (MAC FILE_TYPE) Now Contact Label Defn
ELC = Compiled ELISP code (Emacs-Lisp)
ELC = Mime: application/x-bytecode.elisp
ELC = Mime: application/x-elc
ELF = Black Belt Systems Extended Layer File
ELI = Compressed file archive (ELI)
ELM = Dllbackup microsoft Themes artsy file
ELST = (MAC FILE_TYPE) Now Contact Sorted List
ELT = Prosa event list
EM$ = Modem Bitware Fax disk2 file
EMAIL = Outlook Express Mail Message (Rename to .EML to access in OE)
EMB = ABT extended module
EMB = Mime: chemical/x-embl-dl-nucleotide
EMBL = Mime: chemical/x-embl-dl-nucleotide
EMD = Micrografx System4 Media Manager file
EMF = Enhanced Windows Meta-file picture
EML = Mime: message/rfc822
EML = Outlook Express EMaiL
EMM = (old) extended memory manager file
EmMe = (MAC FILE_TYPE) Email Merge
EMPTYBINARYREGISTRY = OneNote open with: %ProgramFiles%\MICROS~2\Office12\ONENOTE.EXE /hyperlink "%1"
EMPTYBINARYREGISTRY = OneNote open with: %ProgramFiles%\MICROS~3\Office12\ONENOTE.EXE /hyperlink "%1"
EMPTYBINARYREGISTRY = OneNote open with: C:\PROGRA~1\MICROS~3\Office12\ONENOTE.EXE /hyperlink "%1"
EMR = Emrite (Wordprocessor file)
EMS = PC Tools Enhanced Menu System Config
EMST = (MAC FILE_TYPE) EHelp Media File
EMU = BITCOM terminal EMUlation data
EMU = Emulation
EMU-SL = E-mu sound library cd-rom
EMX = Msdos Extender file
EN = Stratum template file
EN$ = Midiprg Steinberg Cubase compressed file
EN4 = Enable v3.0 & 4.x
ENC = Encoded file - UUENCODEd file (Lotus 1-2-3 - uuencode)
ENC = Encore music
ENC = Mime: video/mpeg
ENC = MPEG Video; video/mpeg; (MOV | Encore sound )
END = CorelDraw Arrow-head definition file
ENF = EndNotePlus.ENF open with: "%ProgramFiles%\EndNote 9\EndNote.EXE" "%1" Content Type application/x-endnote-filter
ENFF = Extended Neutral File Format
ENG = ENGlish documentation
ENG = Graphics (charting) (EnerGraphics)
ENG = Matlab ENGine routines
ENG = Sprint dictionary engine
ENL = Endnote Library File (for research papers)
ENP = EndNotePlus.ENP open with: "%ProgramFiles%\EndNote 9\EndNote.EXE" "%1"
ENQ = EndNotePlus.ENQ open with: "%ProgramFiles%\EndNote 9\EndNote.EXE" "%1" Content Type application/x-endnote-search
ENS = Enable spreadsheet, version 3.0, 4.0, and 4.5
ENT = SGML Entities, character mapping
ENU = Win Ace204 file
ENV = ENVelope or ENVironments, may be used by many programs
ENV = HP-95 Environment; like CNF
ENV = Mime: application/x-envoy
ENV = Novell ENVoy data
ENV = WOPR ENVeloper macro
ENW = Windows Word processing Format
ENYD = (MAC FILE_TYPE) Envoy Document
ENZ = EndNotePlus.ENZ open with: "%ProgramFiles%\EndNote 9\EndNote.EXE" "%1" Content Type application/x-endnote-connect
EOBJ = Geoworks object code (error-checking version)
EOF = Downloadable font file (Netscape navigator)
EOL = Mime: audio/
EOSAT = LANDSAT/EOSAT Satellite picture data image format
EP2 = EclipsePackager Package
EPA = Award Bios Logo image format
EPB = Mime: application/x-epublisher
EPC = Jill game file
EPD = Express Publisher publication
EPDF = Encapsulated Portable Document Format
EPF = Encapsulated Postscript Image (Image EPSF)
EPHTML = Enhanced Perl-parsed HTML file
EPI = Express Publisher Encapsulated PostScript (text and graphics)
EPJ = Java-clients file
EPL = Tallyman E-commerce Software
EPP = file.epp open with: %ProgramFiles%\Canon\Easy-PhotoPrint\BJEZPRN.EXE "%1"
EPRTX = Windows.XPSReachViewer open with: %SystemRoot%\System32\xpsrchvw.exe "%1" %* PerceivedType document PerceivedType document Content Type model/vnd.eprtx+xps
EPS = Adobe Illustrator text and graphics (Encapsulated PostScript)
EPS = Corel-TRACE Encapsulated PostScript
EPS = Mime: application/postscript
EPS = Printer font (Epson/Xerox...) (Ventura Publisher)
EPS2 = Adobe Level II Encapsulated PostScript
EPSF = (MAC FILE_TYPE) Mac PostScript File
EPSF = Adobe Encapsulated PostScript text and graphics
EPSI = Adobe Encapsulated PostScript Interchange format
EPSON = Epson printer graphics file
EPSP = (MAC FILE TYPE) EPS created by Xpress (PC ext: EPS)
EPSP = (MAC FILE_TYPE) PC PostScript File
EPT = Adobe Encapsulated PostScript Interchange format with TIFF preview
EQF = WinAmp equalizer settings file
EQN = Equation
EQN = WordPerfect for Win EQuatioN
EQU = Assembly language equates
EQX = Goldwave 402 file
ER = Aol30 organizer file
ER1 = ERWin data
ER_ = Winhelp file (compressed)
ERD = Active Media Eclipse Resource Database
ERD = Prosa Entity Relationship Diagram graphic file
ERF = Active Media Eclipse Resource File
ERF = SGML "Visual DTD Entity Reference File"
ERG = Midiprg Arranger file
ERI = ERI-chan (Entis Rasterized Image) image format
ERI = ERWin data
ERIK = (MAC CREATOR CODE) Finder (Desktop files)
ERM = Bitmap image
ERM = Prosa Entity Relationship diagram Model file
ERR = ERRor log, messages for command line compilers
ERS = Satellite image header (ER Mapper file) (Earth Resource Mapping)
ERX = ERWin data
ES = CONFIG 915E file
ES = Mime: application/x-esrehber
ES = Mime: audio/echospeech
ES_ = Audio Waveprg Sounder compressed file
ESC = 2d Graphic
ESET = (MAC FILE_TYPE) Extensions Manager Set
ESF = Audio file (Emblaze)
ESH = Extended Shell batch file
ESI = Diskeeper disk defragmenter
ESK = Longplay Vesa file
ESL = FoxPro Macintosh Runtime Library
ESL = Mime: audio/echospeech
ESM = Enhance Simplex image format
ESO = FoxPro
ESP = Active Media Eclipse Screensaver Project
ESPF = Encapsulated PostScript Files
espf = (MAC FILE_TYPE) Energy Saver Prefs File
ESPS = ESPS audio file
ESRF = European Synchrotron Radiation Facility storage format
ESS = Style sheet (The Scientific Word Processor)
EST = Webalizer.01 Lang file
ESY = EmEditor Syntax File
ES~ = EPOC Synchronization file
ETA = eTreppid Audio File (eTplayer & ETVC media CODEC)
eTB2 = (MAC FILE_TYPE) Timbuktu Pro Resource
ETC = eTreppid Compressed File
ETC = Mime: application/x-earthtime
ETD = EBXTransfer open with: "%ProgramFiles%\Adobe\Acrobat 7.0\Reader\AcroRd32.exe" "%1" Content Type application/x-ebx
ETD = EBXTransfer open with: "C:\Programme\Adobe\Acrobat 7.0\Reader\AcroRd32.exe" "%1" Content Type application/x-ebx
ETF = Enriched Text Format for mail messages
ETH = Ethnograph 3 document
ETL = Active Media Eclipse Transition Listing
ETM = eTreppid Audio File (eTplayer & ETVC media CODEC)
ETV = eTreppid Audio File (eTplayer & ETVC media CODEC)
ETX = Mime: text/x-setext
ETX = Structure Enhanced (setext) text
EUC = Japanese text (Kanji)
EuHl = (MAC FILE_TYPE) Eudora Help
EUI = Ensoniq ESP family compacted disk image
EUI = sound file
EUREKA = Internal data files (Borland's Eureka Packer format)
EV2 = Java File
EVM = Mime: x-lml/x-evm
EVP = Sound envelope (general purpose data curves stored as doubles) (mxv)
EVT = EVenT descriptions/log
EVTX = evtxfile open with: %SystemRoot%\system32\eventvwr.exe /l:"%1"
EVY = Corel Envoy Document
EVY = Mime: application/envoy
EVY = Mime: application/x-envoy
EVY = Tumbleweed Software ActiveX Control; a Portable Document format
EWB = Electronics Workbench
EWD = Express Publisher for Windows document
EWL = Microsoft Encarta document
EWP3 = (MAC FILE_TYPE) Now Contact File
EX = Cequadrat Backup file
EX = Symantec Ghost template file
EX! = Modem Bitware Fax disk1 file
EX$ = MS compressed EXE; decompress with UNPACK.EXE
EX3 = Harvard Graphics 3.0 device driver
EX_ = Compressed EXE (a one-file archive)
EXA = Lsys file
EXC = Exclude file for Optimize (do not process) (QEMM)
EXC = Mail/Exchange component/tbv
EXC = Microsoft Word Exclusion Dictionary
EXC = Mime: text/plain
EXC = Rexx language source code file (VM/CMS)
EXC = Text document
EXD = VBE tmp file
EXE = Executable file
EXE = Mime: application/octet-stream
EXE = Mime: application/x-msdownload
EXE = Self-displaying image
EXE = Self-extracting archive
EXF = ABS Viewpoint file
EXI = (Exchangeable Image File) orig. Fuji EXIF format : Bitmap graphics
EXIF = (Exchangeable Image File) orig. Fuji EXIF format : Bitmap graphics
EXM = Application Program; HP 95, 100, 200 Palmtop PC System Manager Compliant program
EXM = Xsys document file
EXO = System file
EXP = Export (MS Visual C++)
EXP = Express schema (STEP)
EXP = Protected mode executable program (PharLap)
EXP = QuickBooks
EXP1 = ??? ?archiv?
EXR = IrfanView.exr open with: "%Root%\Tools\IrfanView\i_view32.exe" "%1"
EXR = Photoshop.OpenEXRFile.10 open with: "%ProgramFiles%\Adobe\Adobe Photoshop CS3\Photoshop.exe" "%1" PerceivedType Image PerceivedType Image Content Type application/x-ebx
EXR = Photoshop.OpenEXRFile.10 open with: "C:\Programme\Adobe\Adobe Photoshop CS3\Photoshop.exe" "%1" PerceivedType Image
EXT = Mime: application/vnd.novadigm.EXT
EXT = Norton Commander extension file
EXT2 = Linux : Second extended file system
EXT32 = Linux second extended filesystem specification
EXTATTR = extattr_auto_file open with: %SystemRoot%\system32\NOTEPAD.EXE %1
EXTR = (MAC FILE TYPE) Self-extracting archive created by Compact Pro
EXU = Euphoria source code file for linux
EXW = Euphoria source code file for Windows
EXX = Intermediate file by MsgPut (IBM LinkWay)
EX~ = DOS file
EYB = Encyclopedia Yearbook File
EYE = Renderize Project
EZ = Mime: application/andrew-inset
EZC = EZScreen Screen Saver Editor
EZF = EZ-Fax
EZF = Fax (Calculus EZ-Fax)
EZM = Text File (mailing lists)
EZP = Compressed file (Edify Electronic Workforce Backup Utility)
EZS = Sunburst Technology Easy Sheet Document
EZT = Sunburst Technology Easy Sheet Template

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Universal dump-utility for non-destructive dump/list/search string etc

Select Extension by starting letter:

A- B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U -

V- W - X - Y - Z - OTHER - Allowed chars in Filenames - what is an extension?


If you find an extension missing, write! No guarantee given for completeness or correctness. If you feel an extension is outdated, write!
Authors and retailers: it is in the interest of us all and our customers to avoid the double use of extensions! Please help us keep this compilation up todate!
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Any questions for not listed extensions or "what program opens xxx":
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Compilation Copyright (c) 2002 R.Bitsch, Compilation Copyright (c) 2009,2010 R.Cooper-Bitsch