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)
    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
    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
    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
    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
    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