X
- .X - AVS Image
- .X - Microsoft Direct-X SDK
- .X01 - Secondary index file
- .X02 - Secondary index file
- .X03 - Secondary index file
- .X04 - Secondary index file
- .X05 - Secondary index file
- .X06 - Secondary index file
- .X07 - Secondary index file
- .X08 - Secondary index file
- .X09 - Secondary index file
- .X10 - Bitmap image (X Window dump)
- .X11 - Bitmap image (X Windows system window dump)
- .X16 - Macromedia Extra
- .X20 - Xtree (gold) Dos help file
- .X32 - Macromedia Program Extension (32-bit)
- .X3D - X3D File
- .X3F - Foveon X3F RAW format image.
- .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
- .X64 - Commodore 64 Disk Image
- .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
- .XAML - Extensible Application Markup Language
- .XANN - XANN Packer format (music/sound)(Asle / ReDoX)
- .XAP - Compressed Silverlight Application
- .XAR - Xara/Xara Xtreme Vector Image File
- .XB0 - Xtree (gold) Dos help file
- .XBE - Executable File
- .XBF - Data base file
- .XBM - X Bitmap Graphic
- .XBN - Cygnus ld-scripts file
- .XBW - Crossword
- .XBX - CD Image File
- .XC - Bitmap image (X server screen)
- .XC0 - Xtree (gold) Dos help file
- .XCEL - Excel File
- .XCF - Gimp Bitmap image format
- .XCI - XML Configuration Information
- .XCK - Extended crack file (usually text)
- .XCL - Xtree for Win script
- .XCM - Exported Concept Map File
- .XCODE - Xcode Project
- .XCODEPROJ - Xcode Project
- .XCOF - Mac OS Object Library
- .XCP - Compressed File
- .XD - Ccs-lib.2 Examples Motif-cc file
- .XD0 - Xtree (gold) Dos help file
- .XDB - Anti-Virus Update File
- .XDCT - XPress Dictionary
- .XDE - Tgif-3.0 file
- .XDF - Extended disk format image (OS/2 xdfcopy.exe)
- .XDL - XML Schema file
- .XDM - X-Windows Dump
- .XDO - Animation Formula Graphics
- .XDOC - Xpress file
- .XDOC - XPress 3 Layout
- .XDOC - Xpress
- .XDOC - Xerox ScanWorX and Textbridge OCR File Format
- .XDP - UNIX File
- .XDR - XML data reduced file
- .XDW - Fuji Xerox DocuWorks File
- .XE0 - Xtree Dos help file
- .XEA - Encrypted Archive File
- .XEC - Afaria
- .XED - XED chemical modeller output file
- .XED - XED chemical modeller input file
- .XEF - WinAce Encrypted File
- .XEF - eManager Form Data
- .XEM - eManager Metered Units
- .XEM - PowerDesigner Model definition File
- .XEN - Xenu Document open with: XENU.EXE
- .XEN - Guitar Hero 3 Song File
- .XEP - eManager File Packaging Information
- .XES - eManager Skins Definition
- .XET - eManager Process Definition
- .XEV - eManager Auto-Update File
- .XEX - Xbox 360 Executable File
- .XEZ - eManager Template Package
- .XFD - Atari Disk Image
- .XFD - Acu4GL Extended File Description
- .XFD - XML Form in XFDL Format
- .XFDF - Acrobat Forms Document
- .XFDL - Embedded PureEdge Form.
- .XFDL - XML Form in XFDL Format
- .XFI - Latex Figures file
- .XFM - Cooledit 1.50 file
- .XFM - Coolwave 2000 file
- .XFN - Xerox Printer font file
- .XFN - Printer font file
- .XFO - XSL-FO Formatted Form
- .XFR - Ventura Publisher bitmap editor font file
- .XFS - eRacer Sound File
- .XFT - Printer font file
- .XFT - XML Forms Template
- .XFX - Fax Document
- .XG0 - Database Index; Paradox secondary index;
- .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
- .XHT - Extensible HyperText Markup Language File
- .XHTM - Extensible HyperText Markup Language File
- .XHTML - Extensible HyperText Markup Language File
- .XI - Instrument file
- .XI - Instrument sample file
- .XIB - Interface Builder File
- .XIF - Image file
- .XIF - Wang imaging file
- .XIM - X11 Xim Toolkit bitmap
- .XIP - HP95 Execute-in-place program
- .XIX - IIS NNTP Subject Lists
- .XL - Microsoft Excel for Apple Mac Spreadsheet
- .XL$ - Modem Bitware Fax disk2 file
- .XLA - Microsoft Excel Add-in
- .XLA5 - Excel 5
- .XLA8 - Excel 98 Add-in
- .XLAM - Microsoft Office Excel (2007+) Add In (Macro Enabled)
- .XLA_ - Excel 4 Add-In
- .XLB - Microsoft Excel Toolbar
- .XLB4 - Excel 4 Toolbar
- .XLB5 - Microsoft Toolbar
- .XLB8 - Excel 8 Toolbar
- .XLBN - Excel 1
- .XLBN - Lotus 1-2-3 Worksheet
- .XLBN - Excel 1 spreadsheet
- .XLC - Microsoft Excel Chart
- .XLC3 - Excel 3 Chart
- .XLC4 - Excel 4
- .XLC_ - Excel 2.2 Chart
- .XLD - Microsoft Excel Dialogue
- .XLDE - Dialog Edito
- .XLF - XLIFF Document
- .XLG - Xnetech Engraving Logo File
- .XLK - Microsoft Excel Backup
- .XLL - Microsoft Excel add-in File
- .XLL_ - Excel 4 Add-In
- .XLM - Microsoft Excel Macro
- .XLM3 - Excel Macro File
- .XLM4 - Excel Macro File
- .XLM_ - Excel Macro File
- .XLNK - XML Shortcut File
- .XLPF - Excel Setting File
- .XLR - Spreadsheet File
- .XLS - Excel Spreadsheet File
- .XLS3 - Excel Spreadsheet File
- .XLS4 - Excel Spreadsheet File
- .XLS5 - Excel Spreadsheet File
- .XLS8 - Excel Spreadsheet File
- .XLSB - Microsoft Office Excel (2007+) Non-XML Binary Spreadsheet
- .XLSM - Microsoft Office Excel (2007+) Spreadsheet (Macro Enabled)
- .XLSX - Microsoft Office Excel (2007+) Spreadsheet
- .XLS_ - Excel Spreadsheet File
- .XLT - Lotus Translation Table
- .XLT - Microsoft Excel Template
- .XLTB - DataViz Translator
- .XLTM - Microsoft Office Excel (2007+) Template (Macro Enabled)
- .XLTX - Microsoft Office Excel (2007+) Template
- .XLV - Microsoft Excel VBA Module
- .XLW - Microsoft Excel Workspace
- .XLW3 - Excel Workbook File
- .XLW4 - Excel Workbook File
- .XLW5 - Excel Workbook File
- .XLW_ - Excel Workbook File
- .XM - Music module
- .XMB - X-Wing Mission Briefing File
- .XMD - GameJack Disc Image
- .XMF - Milnta APL Transfer Function
- .XMF - Extensible Music File Format
- .XMI - Compressed midi music
- .XML - Extensible Markup Language
- .XMLPER - LeCroy Binary Waveform File
- .XMP - Spice Pspice Lib file
- .XMS - eXtended Memory Specification (XMS)
- .XMT - XMT_auto_file open with: TriSpect.exe
- .XMZ - XGL movie (MegaView)
- .XN - Cygnus ld-scripts file
- .XNF - Network file
- .XNK - Shortcut file
- .XNT - Spice Pspice Lib file
- .XOF - RenderMorphics
- .XOL - PowerDesigner Object Language File
- .XOL - Swiss Map Overlay
- .XON - Datafile
- .XOS - Xaos Tools bitmap image
- .XOT - Xnetech Job Output File
- .XP - System Util file
- .XPC - ActionReplay Saved Code
- .XPD - PlayStation Store PSP License File
- .XPD - XML Pipeline Document
- .XPG - Autoplay Media Studio Exported Page
- .XPI - FireFox Web-browser Extension
- .XPIX - Nonogram puzzle
- .XPJ - Micro Planner X-Pert Project File
- .XPK - XPK Player Compressed Audio
- .XPK - Xscript Package
- .XPK - Spice Pspice Library File
- .XPL - Xset plugins file
- .XPM - X PixMap File
- .XPR - PressIt Disc Label
- .XPR3 - Xpress (all versions)
- .XPR3 - QuarkXpress 3
- .XPR3 - EPS created by Xpress
- .XPR3 - QuarkXPress
- .XPS - Backup for xport .sps
- .XPT - SAS Transport File
- .XPT - Mozilla Firefox Component
- .XPW - Accessible FormNet Fillable Form
- .XQT - Executable File
- .XQT - Macro file
- .XR - Cygnus ld-scripts file
- .XR1 - Epic MegaGames Xargon game data
- .XREF - Cross reference file (AIX as)
- .XRF - Cross-reference file
- .XRS - Realplayer Plugin Extresources file
- .XSB - XQ-Xsetup backup file
- .XSC - XML schema
- .XSD - XML Schema File
- .XSI - Softimage XSI 3D Image
- .XSL - XML Stylesheet
- .XSLT - XSL Transformation
- .XSM - LEXIS-NEXIS Tracker
- .XSN - Form Template File
- .XSPF - Shareable Playlist Format (XML)
- .XSS - Ability Office - Spreadsheet
- .XST - Tanner Ledit : Crossview data
- .XSTB - TextBridge
- .XSU - Fortran Libf77 file
- .XSUM - Clapack file
- .XSX - Schema view layout description file
- .XT - FastTracker music track
- .XT* - Crosstalk Related File
- .XTB - External translation table
- .XTG - Quark Xpress 3.32 tags files
- .XTMP - Xpress template
- .XTMP - XPress 3 Template
- .XTND - Acrobat Plug-in
- .XTP - Data file
- .XTR - RealArcade Compressed Data File
- .XTRA - Flash
- .XTRA - Quark Xtra
- .XTREME - Winstep Xtreme Theme Pack
- .XTRL - XTND Translator Lis
- .XU - Cygnus ld-scripts file
- .XUL - XML User Interface Language
- .XV - VIFF bitmap image (Khoros Visualization Image File
- .XVID - XVID Encoded Video File
- .XVR - Superscape Viscape file
- .XVU - BOClean Database File
- .XWC - Crosstalk for Windows Compiled Script
- .XWD - X Window Dump format
- .XWF - General Working file
- .XWI - X-Wing Mission File
- .XWK - Keyboard mapping file
- .XWP - Text file
- .XWP - Session file
- .XWS - Crosstalk for Windows Script
- .XWZ - Xset wizards file
- .XX - Compressed ASCII archive
- .XXE - Xxencoded File
- .XXT - Extension DLL (seldom)
- .XXX - Various
- .XY - Text file
- .XY3 - Document file
- .XY4 - Document file
- .XY4V - XYWrite IV document
- .XY? - XYWrite document
- .XYP - Document file
- .XYW - Document file
- .XYZ - XYZ chemical modeller input file
- .XYZ - Moleculeviewer models file
- .XYZI - 3rdTech Scanner File
281 file extensions found.
