X = Alysis SuperDisk self-extracting archive X = Lex language source code X = Microsoft Direct-X SDK X = Stardent AVS X bitmap image (24bit) X = X-file animation (Direct3D) (DeepV2) X = X1 archive X = XYZ chemical modeller output file X-PNG = Mime: image/png X01 = Paradox secondary index file X02 = Paradox secondary index file X03 = Paradox secondary index file X04 = Paradox secondary index file X05 = Paradox secondary index file X06 = Paradox secondary index file X07 = Paradox secondary index file X08 = Paradox secondary index file X09 = Paradox secondary index file X10 = Bitmap image (X Window dump) X11 = Bitmap image (X Windows system window dump) X16 = Macromedia Extra document (16 -bit program extension) X20 = Xtree (gold) Dos help file X32 = Macromedia Extra document (32 -bit program extension) X3D = Mime: application/vnd.hzn-3d-crossword X3D = x3d and xdart formats X40 = Xtree (gold) Dos help file X4M = TeamLinks Mail File Data X5 = Rockwell Software Logix 5 File X50 = Xtree (gold) Dos help file X60 = Xtree (gold) Dos help file X70 = Xtree (gold) Dos help file X80 = Xtree (gold) Dos help file X90 = Xtree (gold) Dos help file XA = Sony Playstation audio files XA0 = Xtree (gold) Dos help file XAB = Microsoft Mail address book XAF = Active VRML XANN = XANN Packer format (music/sound)(Asle / ReDoX) XAR = Corel Xara drawing XAR = Mime: application/vnd.xara XB0 = Xtree (gold) Dos help file XBD = Mime: application/vnd.fujixerox.docuworks.binder XBF = Data base file XBM = Mime: image/x-xbitmap XBM = Mime: image/x-xbm XBM = Mime: image/xbm XBM = X Windows system BitMap image XBN = cygnus ld-scripts file XBW = Crossword XB~ = compressed Ic file XC = Bitmap image (X server screen) XC0 = Xtree (gold) Dos help file XCEL = (MAC CREATOR CODE) Excel 1 (PC ext: XLS) XCEL = (MAC CREATOR CODE) Excel 4 (PC ext: XLS) XCEL = (MAC CREATOR CODE) Excel 5 (PC ext: XLS) XCEL = (MAC CREATOR CODE) Excel 6 XCEL = (MAC FILE_TYPE) MS Excel XCF = Gimp Bitmap image format XCK = Extended crack file (usually text) XCL = Xtree for Win script XCOF = (MAC FILE_TYPE) Mac OS Object Library XD = Ccs-lib.2 Examples Motif-cc file XD0 = Xtree (gold) Dos help file XDCT = (MAC FILE_TYPE) XPress Dictionary XDE = Tgif-3.0 file XDF = Extended disk format image (OS/2 xdfcopy.exe) XDL = XML Schema file XDM = Mime: application/x-xdma XDM = X-Windows Dump XDMA = Mime: application/x-xdma XDO = Animation Formula Graphics XDOC = (MAC FILE TYPE) Xpress (all versions) (PC ext: QXD) XDOC = (MAC FILE TYPE) Xpress file XDOC = (MAC FILE_TYPE) XPress 3 Layout XDOC = Xerox ScanWorX and Textbridge OCR File Format (Word) XDR = Mime: video/x-amt-demorun XDR = XML data reduced file XDW = Mime: application/vnd.fujixerox.docuworks XE0 = Xtree Dos help file XED = XED chemical modeller input file XED = XED chemical modeller output file XEN = Xenu Document open with: XENU.EXE XFDL = Mime: application/vnd.xfdl XFI = Latex Figures file XFM = Cooledit 1.50 file XFM = Coolwave 2000 file XFN = Printer font (Xerox 4045) (Ventura Publisher) XFR = Ventura Publisher bitmap editor font file XFT = 24 pin printer font (ChiWriter) XFX = Fax File (various) XG0 = Database Index; Paradox secondary index; see YG0; changes to XG1 XG1 = Database Index; Also XG2, XG3... XG2 = Database Index; Also XG3... XG3 = Database Index; Also XG4... XGL = MegaBitz graphics language file XGZ = MegaBitz vector drawing XGZ = Mime: xgl/drawing XHTML = Libxml Html file XI = Fastracker 2.0 instrument file XIF = eXtended Image File Format XIF = Mime: image/vnd.xiff XIF = Xerox DIFF image format XIM = X11 Xim Toolkit bitmap XIP = HP95 Execute-in-place program (modified EXE/like com) XL = Mime: application/excel XL = Ms Excel spreadsheet XL$ = Modem Bitware Fax disk2 file XLA = Mime: application/excel XLA = Mime: application/vnd.ms-excel XLA = Mime: application/x-excel XLA = Mime: application/x-msexcel XLA = Ms eXceL Addin macro sheet XLA = Xlib Archive (Xlib graphics library) XLA5 = (MAC FILE_TYPE) Excel 5 XLA8 = (MAC FILE_TYPE) Excel 98 Add-in XLA_ = (MAC FILE_TYPE) Excel 4 Add-In XLB = Mime: application/excel XLB = Mime: application/vnd.ms-excel XLB = Mime: application/x-excel XLB = Ms ExceL Spreadsheet XLB4 = (MAC FILE_TYPE) Excel 4 Toolbar XLB5 = (MAC FILE_TYPE) Microsoft Toolbar XLB8 = (MAC FILE_TYPE) Excel 8 Toolbar XLBN = (MAC FILE TYPE) Excel 1 (PC ext: XLS) XLBN = (MAC FILE TYPE) Excel 1 spreadsheet XLBN = (MAC FILE_TYPE) Lotus 1-2-3 Worksheet XLC = Microsoft Excel chart XLC = Mime: application/excel XLC = Mime: application/vnd.ms-excel XLC = Mime: application/x-excel XLC3 = (MAC FILE_TYPE) Excel 3 Chart XLC4 = (MAC FILE_TYPE) Excel 4 XLC_ = (MAC FILE_TYPE) Excel 2.2 Chart XLD = Microsoft Excel dialogue XLD = Mime: application/excel XLD = Mime: application/x-excel XLDE = (MAC FILE_TYPE) Dialog Edito XLG = Xnetech Engraving Logo File XLK = Microsoft Excel backup XLK = Mime: application/excel XLK = Mime: application/x-excel XLL = Microsoft Excel add-in XLL = Mime: application/excel XLL = Mime: application/vnd.ms-excel XLL = Mime: application/x-excel XLL_ = (MAC FILE_TYPE) Excel 4 Add-In XLM = Microsoft Excel macro XLM = Mime: application/excel XLM = Mime: application/vnd.ms-excel XLM = Mime: application/x-excel XLM3 = (MAC FILE_TYPE) Excel 3 Macro XLM4 = (MAC FILE_TYPE) Excel 4 XLM_ = (MAC FILE_TYPE) Excel 2.2 Macro XLPF = (MAC FILE_TYPE) Excel Setting File XLR = MS Works File XLS = Microsoft Excel worksheet XLS = Mime: application/excel XLS = Mime: application/vnd.ms-excel XLS = Mime: application/x-excel XLS = Mime: application/x-msexcel XLS3 = (MAC FILE TYPE) Excel 3 spreadsheet XLS3 = (MAC FILE_TYPE) Excel 3 Spreadsheet XLS4 = (MAC FILE TYPE) Excel 4 (PC ext: XLS) XLS4 = (MAC FILE TYPE) Excel 4 spreadsheet XLS4 = (MAC FILE_TYPE) Excel 4 XLS5 = (MAC FILE TYPE) Excel 5 (PC ext: XLS) XLS5 = (MAC FILE_TYPE) Excel 5 XLS8 = (MAC FILE_TYPE) Excel 98 Spreadsheet XLS_ = (MAC FILE TYPE) Excel 2.2 spreadsheet XLS_ = (MAC FILE_TYPE) Excel 2.2 Spreadsh XLT = Microsoft Excel template XLT = Mime: application/excel XLT = Mime: application/vnd.ms-excel XLT = Mime: application/x-excel XLT = Translation table (Lotus 123/Symphony/Procomm Plus) XLT = Translation table many prgs XLTB = (MAC FILE_TYPE) DataViz Translator XLV = Microsoft Excel VBA module XLV = Mime: application/excel XLV = Mime: application/x-excel XLW = Microsoft Excel workbook / workspace XLW = Mime: application/excel XLW = Mime: application/vnd.ms-excel XLW = Mime: application/x-excel XLW = Mime: application/x-msexcel XLW3 = (MAC FILE_TYPE) Excel 3 Workbook XLW4 = (MAC FILE_TYPE) Excel 4 XLW5 = (MAC FILE_TYPE) Excel 5 XLW_ = (MAC FILE_TYPE) Excel 2.2 Workbook XM = Cubic Player file XM = FastTracker 2, Digital Tracker music module (MOD) file XM = Mime: audio/x-mod XM = Mime: audio/xm XM = sound file XMB = X-Wing Mission Briefing File XMI = Compressed eXtended MIdi music XML = Internet document; Extensible Markup Language; many prgs even. MS Office later 98 XML = Mime: application/xml XML = Mime: text/vnd.IPTC.NewsML XML = Mime: text/vnd.IPTC.NITF XML = Mime: text/vnd.wap.si XML = Mime: text/vnd.wap.sl XML = Mime: text/vnd.wap.wml XML = Mime: text/xml XMP = Spice Pspice Lib file XMS = eXtended Memory Specification (XMS), ver 3.0 Microsoft XMT = XMT_auto_file open with: TriSpect.exe XMZ = Mime: audio/x-mod XMZ = Mime: xgl/movie XMZ = XGL movie (MegaView) XN = cygnus ld-scripts file XNF = Standard Network File form XNK = Microsoft Exchange shortcut XNT = Spice Pspice Lib file XOF = RenderMorphics XON = Axon datafile XOS = Xaos Tools bitmap image XOT = Xnetech Job Output File XOWN= = Xtras files Type "Xtra" Creator "Xown" (MAC) XP = System Util file XPIX = Mime: application/x-vnd.ls-xpix XPIX = Nonogram puzzle XPK = Spice Pspice Lib file XPL = Xset plugins file XPM = Mime: image/x-xpixmap XPM = Mime: image/x-xpm XPM = Mime: image/xpm XPM = Unix-X11 PixMap (256 color image for X Windows) (8bit text) XPR = Mime: application/vnd.is-xpr XPR3 = (MAC CREATOR CODE) EPS created by Xpress (PC ext: EPS) XPR3 = (MAC CREATOR CODE) QuarkXpress 3 XPR3 = (MAC CREATOR CODE) Xpress (all versions) (PC ext: QXD) XPR3 = (MAC FILE_TYPE) QuarkXPress XPS = backup for xport .sps by sharkport XPW = Mime: application/vnd.intercon.formnet XPX = Mime: application/vnd.intercon.formnet XQT = SuperCalc macro spreadsheet XQT = Waffle executable XR = cygnus ld-scripts file XR1 = Epic MegaGames Xargon game data XREF = Cross reference file(AIX as) XRF = Cross Reference XRS = Realplayer Plugin Extresources file XSB = XQ-Xsetup backup file XSC = XML schema XSD = XML schema description file XSL = Mime: text/xml XSL = Mime: text/xsl XSL = Steuer2001 file XSM = LEXIS-NEXIS Tracker XSR = Mime: video/x-amt-showrun XST = Tanner Ledit : Crossview data XSTB = (MAC FILE_TYPE) TextBridge XSU = Fortran Libf77 file XSUM = Clapack file XT = FastTracker music track XT* = Crosstalk Related File XTB = LocoScript External Translation TaBle XTG = Quark Xpress 3.32 tags files XTMP = (MAC FILE TYPE) Xpress template XTMP = (MAC FILE_TYPE) XPress 3 Template XTND = (MAC FILE_TYPE) Acrobat Plug-in XTP = XTreeGold overlay XTR = RealArcade Compressed Data File Xtra = (MAC FILE_TYPE) Flash XTRa = (MAC FILE_TYPE) Quark Xtra XTRA = Xtras files Type "Xtra" Creator "Xown" (MAC) XTRL = (MAC FILE_TYPE) XTND Translator Lis XU = cygnus ld-scripts file XUL = XML User Interface Language XUL = Mime: text/xul XV = VIFF bitmap image (Khoros Visualization Image File Format) XVR = Superscape Viscape file XVU = BOClean Database File XWC = Crosstalk for Windows Compiled Script XWD = Mime: image/x-xwd XWD = Mime: image/x-xwindowdump XWD = X Windows window screen dump/bitmap XWF = Yamaha XG Works XWI = X-Wing Mission File XWK = Keyboard mapping (Crosstalk) XWP = Crosstalk for Windows Phone book XWP = Xerox Writer document XWS = Crosstalk for Windows Script XWZ = Xset wizards file XX = XXEncoded file (ASCII) (xxdecode/xxencode). 7bit ASCII attachments for email programs that can't handle binary attachments XXE = XXEncoded file (ASCII) (xxencode). 7bit ASCII attachments for email programs that can't handle binary attachments XXT = Extension DLL (seldom) XXX = Sysinfo SA51SWE file XY = XyWrite document XY3 = XYWrite III document XY4 = XY Write IV document XY4v = XYWrite IV document XY? = XyWrite document (?=version) XYP = XY Write III Plus document XYW = XYWrite for Windows 3x/4.0 document XYZ = Mime: chemical/x-pdb XYZ = Mime: chemical/x-xyz XYZ = Moleculeviewer models file XYZ = XYZ chemical modeller input file