file extension Windows/OS2/Apple/Unix/Dos

File ExtensionsWindows/OS2/Apple/UNIX

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Q = Win95 fax queue
Q&A = Questions and answers
Q0 = Japanese Q0 bitmap image (24bit)
Q1 = Winamp file
Q3D = Quickdraw 3D file
Q3X = PCD0501,System32 file
Q9Q = BladePro Graphic Plugin File
QAD = Corel WordPerfect PerfectFit QuickArt NameSpace ,WPG Thumbnail
QAG = Norton Desktop Quick Access Group
QAM = Mime: application/vnd.epson.quickanime
QAM = Omnis Quartz Audio Mix
QAP = Application (Omnis Quartz)
QAR = Quartus II archive (http://www.altera.com)
QBB = Quickbooks backup file
QBB = QuickBooks for Windows
QBD = Win3 Quicken file
QBE = dBase saved query (QBE = query by example)
QBE = Quattro Pro Saved query (QBE = query by example)
QBL = Business Lawyer Document
QBO = dBASE IV compiled query
QBO = Mime: application/vnd.intu.qbo
QBS = Microsoft QuickBasic : Program file
QBW = QuickBooks for Windows spreadsheet
QBW = Quickbooks working file
QBX = Intuit de online file
QBX = Win3 Quicken Qbtxsys file
QCA = Mime: application/vnd.ericsson.quickcall
QCALL = Mime: application/vnd.ericsson.quickcall
QCP = Mime: audio/vnd.qcelp
QCP = Qualcomm QCELP recoder and player voice file
QCS = CADQC Standard File
QD0 = Omnis Quartz data file - segment 10
QD0 = Omnis Quartz data; also QD1 ... QD9
QD1 = Omnis Quartz data file - segment 1
QD2 = Omnis Quartz data file - segment 2
QD3 = Mime: x-world/x-3dmf
QD3 = Omnis Quartz data file - segment 3
QD3 = QuickDraw 3D metafile
QD3D = Mime: x-world/x-3dmf
QD3D = QuickDraw 3D metafile
QD4 = Omnis Quartz data file - segment 4
QD5 = Omnis Quartz data file - segment 5
QD6 = Omnis Quartz data file - segment 6
QD7 = Omnis Quartz data file - segment 7
QD8 = Omnis Quartz data file - segment 8
QD9 = Omnis Quartz data file - segment 9
QD? = Omnis Quartz Data File Segment (can be 0 to 9)
QDAT = (MAC FILE_TYPE) KaleidaGraph Data
QDAT = Quicktime for Windows install log
QDB = Quicken backup file
QDF = Quicken 2002 file
QDI = Win3 Quicken file
QDK = Backup of startup files created by Optimize (QEMM)
QDLX = (MAC FILE_TYPE) Quicken Deluxe
QDS = SavedDsQuery, open with: rundll32 dsquery.dll,OpenSavedDsQuery
QDT = QuickBooks data file
QDV = Random Dot QDV bitmap image (8bit)
QEF = Query file (Q+E for Ms Excel)
QEL = Quicken 2002 file
QEP = IRMA Wordstation for Windows
QES = Questions
QFC = Compressed file archive
QFI = Quicken 2002 file
QFL = Family Lawyer Document
QFS = Game: need for speed Tracks Trk000 file
QFX = Mime: application/vnd.intu.qfx
QFX = Quick Link II fax file
QHT = QuickTime.qht open with: %ProgramFiles%\QuickTime\QuickTimePlayer.exe "%1" Content Type text/x-html-insertion
QHT = QuickTime.qht open with: %ProgramFiles%\QuickTime\QuickTimePlayer.exe "%1" QuickTime.bak Content Type text/x-html-insertion
QHTM = QuickTime.qhtm open with: %ProgramFiles%\QuickTime\QuickTimePlayer.exe "%1" Content Type text/x-html-insertion
QHTM = QuickTime.qhtm open with: %ProgramFiles%\QuickTime\QuickTimePlayer.exe "%1" QuickTime.bak Content Type text/x-html-insertion
QIC = Backup set for MS Backup
QIF = Mime: image/x-quicktime
QIF = Quicken Export File (like an address label)
QIF = QuickTime Image
QIP = Archiv
QKex = (MAC FILE_TYPE) QuicKeys Extension
QKPT = (MAC FILE_TYPE) KaleidaGraph
QKT = Microsoft Works file
QL = QEDIT file
QL$ = MS compressed QLB; decompress with UNPACK.EXE
QLB = QB-DOS quick library used with Microsoft QB.EXE, QBX.EXE, VBDOS.EXE, QuickC 1.0
QLC = ATM Type 1 fonts script (Adobe Type Manager)
QLP = QuickLink Printer driver
QM = QEDIT file
QM4 = Options or services file (QMail 4.x Mail Door)
QMA = Qedit file
QMD = Quicken backup file
QMDF = (MAC FILE_TYPE) QuickMail Data File
QME = Win3 Quicken Windows file
QMF = Lotus Approach Database Query
QML = Quick Markup Language (Quicka Ltd.)
QMT = Win3 Quicken Windows file
QNT = Chromeleon Quantification Method
QNX = Win3 Quicken Windows file
QOT = Sierra Print Artist quotes
QPA = QuickTimePlayerAddition special configuration file for application(binary format)
QPCT = (MAC FILE_TYPE) KaleidaGraph Plot
QPD = Win3 Quicken Windows file
QPI = Win3 Quicken file
QPR = Database Query; FoxPro Query Program
QPR = OS/2 print queue device driver
QPRJ = (MAC FILE_TYPE) THINK Pascal Project
QPS = Mime: application/vnd.publishare-delta-tree
QPW = Quattro Pro file
QPX = FoxPro compiled executable QBE query file
QQT = Quick Qard Technology Qardware Definition File
QRP = Dr hardware file
QRS = WordPerfect for Win Equation Editor support file
QRT = DKB Ray-Tracer bitmap image
QRT = Qrt Ray-Tracer ray-traced bitmap image
QRY = dBASE IV query
QRY = gen. Database Query
QRY = Lotus Approach query for SQL tables
QRY = Mime: text/html
QSC = Pxyl Visuals Chart
QSD = Quicken 2002 file
QSEG = QSEGFILE open with: "%Applications%\SlimBrowser\sbrowser.exe" %1
QSF = Micrografx QuickSilver; compressed Internet live graphic
QSfL = (MAC CREATOR CODE) Check file of the Symantec AV
QSfl = (MAC FILE TYPE) Check file of the Symantec AV
QSN = QuickScan data (TapCIS)
QST = Ami Pro QuickStart Tutorial image
QST = Quake Spy Tab file
QSTY = (MAC FILE_TYPE) KaleidaGraph Styl
QT = Mime: video/quicktime
QT = Movie Clip; Apple QuickTime movie
QTA = Archive; qtar same as tar
QTC = Apple QuickTime Support file: Conferencing
QTC = Mime: video/x-qtc
QTI = Mime: image/x-quicktime
QTI = QuickTime-related image
qtif = (MAC FILE_TYPE) TIFF ImageProfileeojectif
QTIF = Mime: image/x-quicktime
QTIF = QuickTime-related image
QTK = QuickTake digital camera bitmap image
QTL = YUV SECAM or PAL image
QTM = Apple QuickTime Movie
QTP = QuickTime Preferences file
QTR = QuickTimeResources special configuration file for application(binary format)
QTS = Macintosh PICT image file
QTS = QuickTime
QTV = Movie (QuickTime Virtual Reality)
QTVR = Mime: video/quicktime
QTVR = QuickTime VR
QTX = QuickTime-related image extension
QU2 = QuoVadis 2.0 : Document
QUAD = 3d Graphic
QUE = Scheduler QUEue object
QUERY = PCHEALTH HELPCTR file
QUI = Game: Brain quiz file
QUT = "IBM Voice Type" languages Vocabels file
QW = Q&A Write File
QWB = MS Money Quotes WriteBack Import File
QWD = Misc
QWK = Qwk reader message file
QWP = Quiptics Puzzle File
QXD = QuarkXPress document
QXL = QuarkXPress element library
QXT = QuarkXPress document/template

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


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!
Send extension data to: update@file-ext.4uj.org
Any questions for not listed extensions or "what program opens xxx": search@file-ext.4uj.org
Any other questions, remarks, praise, flaming or reproach: info@file-ext.4uj.org
Compilation Copyright (c) 2002 R.Bitsch, Compilation Copyright (c) 2009,2010 R.Cooper-Bitsch