X Stardent AVS X Image

X Xview Object

X LEX Program File

X Direct3D Object (Microsoft)

X Amapi 3D Modeling

X Alysis SuperDisk Self-extracting Archive

X XBLite Program File

X01 Paradox Secondary Index

X02 Paradox Secondary Index

X03 Paradox Secondary Index

X04 Paradox Secondary Index

X05 Paradox Secondary Index

X06 Paradox Secondary Index

X07 Paradox Secondary Index

X08 Paradox Secondary Index

X09 Paradox Secondary Index

X1 X1 Desktop Search Saved Search File (X1 Technologies, Inc.)

X10 X Window Dump Bitmap

X11 X Windows System Window Dump Bitmap

X13 Hooligans

X16 Macromedia Program Extension

X32 Macromedia Program Extension (Macromedia)

X3D Xara 3D Project File (Xara)

X3D X3D File (Web3D Consortium)

X3DB X3D Binary Format File (Web3D Consortium)

X3DBZ X3D GZipped Binary Format File (Web3D Consortium)

X3DV X3D Classic VRML File (Web3D Consortium)

X3DVZ X3D GZipped Classic VRML File (Web3D Consortium)

X3F Sigma Camera RAW Picture File (Sigma)

X4M TeamLinks Mail File Data

X5 Rockwell Software Logix 5 File

X64 C64 Emulator Disk Image

XA The Sims Extensive Audio (Electronic Arts (Maxis))

XA Gear CD Suite File

XA Playstation Video (Sony Corporation of America)

XA Extended Architecture File

XA2 Exam Editor Question Groups (Nice Productions)

XAB Xenis Mail Address Book

XAB Mail Address Book (Microsoft)

XACT XactScript File (XactCommerce)

XAD eXotic AdLib Format

XAN XANIA Browser

XAN xyALGEBRA File

XAP Xbox Dashboard Script (Microsoft)

XAR Xara X Vector Drawing (Xara Group Limited)

XAR Corel Xara Drawing

XAR Excel AutoRecover File (Microsoft Corporation)

XARC The Longest Journey Sound File (Funcom)

XAS Playstation Video (Sony Corporation of America)

XBE Xbox Executable (Microsoft Corporation)

XBF Emperor Battle for Dune

XBF Database File

XBK SMART Board Slide Collection (SMART Technologies Inc.)

XBL Extensible Binding Language

XBL XBLite Program File

XBM X Bitmap Graphic

XBP XBWML X-Bite.co.uk Markup Language (X-Bite.co.uk)

XBS ETAK MapBase

XBW Crossword

XBX XBox Image File (Microsoft)

XB~ IC File

XC X Server Constant Screen Image Bitmap

XC2 HPXView DACCS Configuration (Haliplex Communication Systems)

XCD WarpIN CID (Configuration, Installation, Distribution) File

XCDATAMODEL Xcode Core Data-based Data Model (Apple Computer, Inc.)

XCF GIMP Image File (The GIMP Team)

XCK Extended Crack File

XCL Xtree for Win Script

XCM CmapTools Exported Concept Map (IHMC)

XCN HPXView DACCS Configuration (Haliplex Communication Systems)

XCR Warlords Battlecry

XCS BuzzLetter Encrypted Stationery Template (StationeryCentral.com, Inc.)

XCT XVI32 Conversion File (Christian Maas)

XCZ BuzzLetter Zipped Collection of Encrypted Stationery Templates (StationeryCentral.com, Inc.)

XD CCS-lib.2 Examples Motif-CC File

XDB HyperCD HyperLOCK (John Galt Media, Inc.)

XDB Norton AntiVirus Update File (Symantec)

XDD XFIT XDD Format Data File

XDE Tgif-3.0 File

XDF X68000 Image File

XDF Milnta APL Transfer Function

XDF ProWORX Nxt Extended Memory Data (Schneider Electric)

XDF Workshare Synergy File

XDF Extended Disk Format Image

XDIM Multi-Channel Server (MCS) Markup Editor XDIME Document (Volantis Systems Ltd.)

XDK XML Development Kit Project (Republicorp Virtual Media)

XDO OutDo Outline File (Aspevia Systems)

XDP UNIX File

XDR BizTalk XML-Data Reduced Schema (Microsoft Corporation)

XDRUID XDIME Player Skin (Volantis Systems Ltd.)

XDR_TOR Insight II Binary Torsion File (Accelrys Software Inc.)

XDS XDS X-ray Detector Software

XDS Symantec Store Download Manager Partial Download (Symantec Corporation)

XDS OpenGL Performer Script

XDSL D-Link Router UK Firmware Update File (D-Link Systems, Inc.)

XDT Xscript Data Packet (Codec Games)

XDW DocuWorks File (Fuji Xerox Co., Ltd.)

XDW Milnta APL Transfer Function

XEC Afaria (XcelleNet)

XEF eManager Form Data (X-Genics Ltd.)

XEM eManager Metering Unit Credits for File Use (XGenics Ltd.)

XEP eManager File Packing Definition (XGenics Ltd.)

XES eManager XML UI Definition for Skins (XGenics Ltd.)

XET eManager XML Definition of eManager Process (XGenics Ltd.)

XEV eManager XML Autoupdate Definition (X-Genics Ltd)

XEX Xbox Executable (Microsoft Corporation)

XEX KERMIT Control File

XEX Renamed .EXE File

XEZ eManager Template Package (X-Genics Ltd.)

XFB LonMark Binary Device Interface File Format (LonMark International)

XFC Docuprint N17 Printer Firmware (Xerox)

XFD Acu4GL Extended File Description (Acucorp, Inc.)

XFD Atari Disk Image (Atari)

XFD XML Form in XFDL Format

XFDF Acrobat Forms Document (Adobe)

XFDL XML Form in XFDL Format

XFI LaTex Figures File

XFM OmniForm XML Format

XFM Audition Transform Effect (Adobe)

XFN Ventura Printer Font

XFO LonMark Optimized Device Interface File (LonMark International)

XFR Symantec Norton Anti-Virus Corporate Version Failed Update

XFR Xfrog Vegetation File (greenworks organic-software)

XFR Ventura Publisher Bitmap Editor Font File

XFS eRacer Sound File

XFS GunBound (Softnyx)

XFT LiveCycle Designer Form (Adobe)

XFT ChiWriter 24 Pin Printer Font

XFX Fax File

XG0 Database Index; Paradox Secondary Index

XG1 Database Index; Also XG2, XG3...

XG1 Techno Toys XG-909 MIDI Drum Machine File

XG2 Database Index; Also XG3, XG4…

XG3 Database Index; Also XG4, XG5…

XG4 Database Index; Also XG5, XG6…

XG5 Database Index; Also XG6, XG7…

XG9 Techno Toys XG-909 MIDI Drum Machine File

XGL MegaBitz Graphics Language File

XGM Techno Toys XG-909 MIDI Drum Machine File

XGO GeoConcept Add-On (GeoConcept SA)

XGO LogMate for Windows File

XGO Paradox Database-related File

XGP PicturePlayer Password Protected Files (PicturePlayer)

XGR Graph Edit XML Graph (Microsoft)

XGS PicturePlayer Scrambled Files (PicturePlayer)

XGZ MegaBitz Vector Drawing

XHD HappyFish XML Data File (ThirstyCrow)

XHDML XML Version of HDML File

XHESSIAN Insight II Hessian File (Accelrys Software Inc.)

XHT Extensible HyperText Markup Language File

XHTM Extensible HyperText Markup Language File

XHTML Extensible HyperText Markup Language File

XHTML Libxml HTML File

XI ScreamTracker Instrument File

XI Fast Tracker 2 Instrument

XIF Xerox Image File

XIF LonMark Device Interface File (LonMark International)

XIF Wang Image File

XIF [Removed by request] [Removed by request] (ScanSoft, Inc.)

XIF [Removed by request] [Removed by request] (ScanSoft, Inc.)

XIF Often a Fax Image (TIFF) File

XIF eXtended Image File Format

XIM X11 Xim Toolkit Bitmap

XIN OmniMark Include File (Stilo)

XIP HP95 Execute-in-place Program

XIP Xbox Dashboard (Microsoft)

XIP Hotbar Image Compression Format

XIX IIS NNTP Subject Lists (Microsoft)

XJS WinExplorer Java Script

XJT Compressed GIMP Image with Properties of GIMP

XJTGZ Compressed GIMP Image with Properties of GIMP

XJTZ2 Compressed GIMP Image with Properties of GIMP

XKS IBM Softcopy Reader PDF Extended Bookshelf File (IBM)

XL XBLite Program File

XL Excel Spreadsheet (Microsoft)

XL Old Amiga Movie Format

XL$ Modem Bitware Fax Disk2 File

XLA Data Import aka Dimport Translation Table (DATAIR Employee Benefit Systems, Inc.)

XLA Excel Add-in (Microsoft)

XLA Xlib Archive

XLB Excel Worksheet (Microsoft)

XLC Excel Chart (Microsoft)

XLD Excel Dialog (Microsoft)

XLE Cooktop File

XLF XLIFF Document

XLG Xnetech Engraving Logo File

XLG AutoCAD XREF Log (Autodesk, Inc.)

XLK Excel Backup (Microsoft)

XLL Excel Add-in (Microsoft)

XLM Excel Macro (Microsoft)

XLO Inventor Export Journal (Autodesk, Inc.)

XLR Works Spreadsheet or Chart (Microsoft Corporation)

XLS Works Spreadsheet (Microsoft)

XLS Excel Worksheet (Microsoft)

XLSENX egis Encrypted Excel XLS File (HiTRUST Inc.)

XLSHTML Excel HTML Document (Microsoft)

XLSMHTML Excel Archived HTML Document (Microsoft)

XLSX Excel Microsoft Office Open XML Format Spreadsheet (Microsoft Corporation)

XLSXENX egis Encrypted Excel Open XML XLSX File (HiTRUST Inc.)

XLT Excel Template (Microsoft)

XLT Lotus Translation Table (IBM)

XLT Procomm Plus Translation Table

XLTHTML Excel HTML Template (Microsoft)

XLV Excel VBA (Microsoft)

XLW Excel Workspace (Microsoft)

XLX XoloX Incomplete Download File

XLXML Excel XML Worksheet (Microsoft)

XM Fast Tracker 2 Extended Module

XM Sound File

XMAP File That Controls How XML/XSL Gets Served

XMB X-Wing Mission Briefing File

XMCD Xmcd CD Information (freedb.org)

XMD GameJack Virtual CD or DVD Image (S.A.D. GmbH.)

XMD OmniMark Source Code (Stilo)

XMF Milnta APL Transfer Function

XMF Extensible Music File Format (MIDI Manufacturers Association Incorporated)

XMF eXtensible Data Model and Format (XDMF)

XMFG MediaForge Runtime Player Distribution Project (XMLAuthor, Inc.)

XMH XMap Handheld Street Atlas USA Map and Route File (Delorme)

XMI XMill Compressed XML (Dan Suciu, AT&T Labs-Research and Hartmut Liefke, University of Pennsylvania)

XMI XML Metadata Interchange Format

XMI Winamp Extended MIDI File

XMI EverQuest File

XML Extensible Markup Language File

XMLBACKUP EnABLE Backup File (Energy Scitech Ltd.)

XMP Graphic File

XMP Spice Pspice Library File

XMP XMap Project Data (Delorme)

XMP Adobe Extensible Metadata Platform (Adobe)

XMS XMS-Tracker

XMS ViewCafT XML Markup Session

XMS AutoCAD External Message (Autodesk, Inc.)

XMT_TXT Parasolid CAD File

XMV Milnta APL Transfer Function

XMX AutoCAD External Message Compiled File (Autodesk, Inc.)

XMX Character Set File

XMZ MegaView XGL Movie

XMZ Fasttracker 2/Extended Module

XNF Standard Network File Form

XNG FishXing Culvert Data File (Stream Systems Technology Center, USDA Forest Service)

XNG OM2 911 Xchange Version 6 Document

XNK Exchange Shortcut (Microsoft)

XNML NML Language Language Extension (NevoSoft)

XNT Spice Pspice Library File

XOF RenderMorphics

XOI eZediaMX and eZedia Player Locked Presentation Document

XOM OmniMark Source Code (Stilo)

XOS Xaos Tools Bitmap Image

XOT Xnetech Job Output File

XP System Utility File

XPA SoniqSync Extended Playlist (SoniqCast, LLC)

XPB XPB! Basic Source Code (Tony D. Jones)

XPC ActionReplay Saved Code (Datel Design and Development Ltd.)

XPF XaoS Position File (Jan Hubicka, Thomas Marsh, Zoltan Kovacs and Others)

XPF X-Protector Project (The Xprotector Team)

XPI Mozilla/Firefox Browser Extension Archive (Mozilla)

XPIX Nonogram Puzzle

XPJ X-Pert for Windows File (Decisive Tools (USA) Pty Ltd)

XPK XPK Player Compressed Audio (Data Becker)

XPK Xscript Package (Codec Games)

XPK Spice Pspice Library File

XPL WinExplorer Simple Script

XPL Music File

XPL Xset Plug-ins File

XPL X-Plane Plug-In (The House of X-Plane)

XPM X Pixmap Graphic

XPM BMC Software Patrol UNIX Icon File

XPM DESQview Macro (Symantec)

XPO Expo Product Tours Project (InstallShield Software Corporation)

XPO Omega Research ProSuite

XPO X-port Version 1

XPP xCOMPOSER.pro Multimedia Data File

XPR Expression 3 Graphic File (Creature House Ltd.)

XPR exPresset CD Label (Pressit)

XPR XBMCTex/Xbox Media Center Graphic File (XboxMediaCenter Project)

XPS XML Paper Specification

XPS X-port Version 2

XPT Dungeons & Dragons Core Rules 2 (Wizards of the Coast, Inc.)

XPT XPCOM Type Library

XPT eXact Packager Models (Giunti Interactive Labs S.r.l. (a company of Giunti Publising Group))

XPTHEME Winstyles Theme (Stardock Corporation, Inc.)

XPTOC XDIME Player Table of Contents (Volantis Systems Ltd.)

XPW Accessible FormNet Fillable Form (Intercon Associates Inc.)

XPW Leading Market Technologies EXPO

XPX RAFTS-XP Macro File (XP Software Inc.)

XPX XML Format File

XPX Dungeons & Dragons Core Rules 2 with Expansion (Wizards of the Coast, Inc.)

XPY xpy Settings File (Jan T. Sott)

XPY MarketBrowser

XQT SuperCalc Macro Sheet

XQT Waffle Executable File

XR Chaos Desktop External Reference File (Chaos systems AB)

XR1 Epic MegaGames Xargon File

XRC wxWindows/wxPython Resource File

XREF AIX Cross Reference File

XRF Crossreference File

XRF Cross Reference

XRG Xscript Game Registry (Codec Games)

XRL XML Résumé Library Résumé

XRL OSCAR Rules File

XRL PowerDesigner Report (Sybase, Inc.)

XRP Experior Practice Management Report (Experior Corporation)

XRS Realplayer Plug-in External Resources File (Real)

XRT Revolution EDX Spectrum Export File in Xraytor Format (4pi Analysis, Inc.)

XRW Architag XRay XML Editor

XS Hummingbird Exceed File

XS3 XESS Worksheet (Applied Information Systems, Inc.)

XS4 XESS Worksheet (Applied Information Systems, Inc.)

XS5 XESS Worksheet (Applied Information Systems, Inc.)

XS8 SIMUL8

XSA XSA Raw Disk Image (XelaSoft)

XSB Sokoban++ Level File

XSC XVI32 Script File (Christian Maas)

XSC Xscript Script (Codec Games)

XSC XML Schema

XSD XML Schema

XSF Milnta APL Transfer Function

XSI Softimage XSI 3D Model (Avid Technology, Inc.)

XSL Steuer2001 File

XSL XML Stylesheet

XSL FileMaker Database Design Report Template

XSLT XSL Transform File

XSM LEXIS-NEXIS Tracker

XSN InfoPath Dynamic Form/Template (Microsoft Corporation)

XSN xyALGEBRA File

XSO Expresso Project File (Ultrapico)

XSP Cross Stitch Professional Design File (DP Software)

XSPF XML Shareable Playlist Format (Xiph.Org)

XSQL Oracle XSQL Servlet XSQL Template File (Oracle Corporation)

XSS Cross Stitch Professional Design File (DP Software)

XSS Ability Office Spreadsheet (Ability Software)

XST X-Tract XML Script (DecisionSoft Limited)

XST Easy Cross Cross Stitch Design (DOS Version) (Fulford Software Solutions)

XSTEP XStep DWI Maker File

XSU Fortran Libf77 File

XSUM Clapack File

XSW Milnta APL Transfer Function

XT FastTracker Music Track

XT* Crosstalk Related File

XTB LocoScript External Translation Table (LocoScript Software)

XTD XML Type Definition

XTEL Xtelplot File Format

XTG QuarkXPress Tags File (Quark, Inc.)

XTM CmapTools Exported Topic Map (IHMC)

XTML XML4web Virtual HTML File (Altair Communications Corporation)

XTP XTreeGold Overlay

XTP XTree Data File

XTR RealArcade Compressed Data File

XTS Babya Desktop Shell System Software Extension

XTS CSPro File

XUF Milnta APL Transfer Function

XUL XML User Interface Language (Mozilla)

XUW Milnta APL Transfer Function

XV Khoros Visualization Image File

XVB WinExplorer VB Script

XVC Verge Compiled Game Code (VERGE Co Ltd)

XVG GROMACS Output File

XVID XviD CODEC

XVM VMware Virtual Machine Console (VMware, Inc.)

XVP Xview Package File

XVS Xview Scene Package File

XVU BOClean Database File

XWC Crosstalk for Windows Compiled Script

XWD Crossdown Puzzle File

XWD X Windows Dump

XWF Yamaha XG Works File

XWF Yamaha XG Works File

XWI X-Wing Mission File

XWK Crosstalk Keyboard Mapping

XWP Xerox Writer Text File

XWP XMLwriter XML Editor Project File (Wattle Software)

XWP Crosstalk Session

XWP Crosstalk for Windows Phone book

XWS Crosstalk for Windows Script

XWS Xara Webstyle File (Xara)

XWZ Xset Wizards File

XWZ_1 Xteq X-Setup File

XX Arcedit Temporary File

XX Xxencoded File

XXA Brixx Planner Account Detail Chart (Brixx Solutions Ltd.)

XXD Brixx Planner Calendar File (Brixx Solutions Ltd.)

XXE Xxencoded File

XXG Brixx Planner Graph (Brixx Solutions Ltd.)

XXI GameSpy Arcade

XXL Archive

XXP Brixx Planner Plan File (Brixx Solutions Ltd.)

XXR Brixx Planner Report File (Brixx Solutions Ltd.)

XXT Extension DLL

XXX Paint Shop Photo Album Panorama (Corel Corporation)

XXX Compucon/Singer PSW Embroidery Design File

XXX Controlware VJ400 Digital CCTV Recording

XXY SPARC Executable Script File

XY XYWrite Text File

XY3 XYWrite Text File

XY4 XYWrite IV Document

XY4V XYWrite IV document

XYP XYWrite III Plus Document

XYW XYWrite Windows 4.0 Document

XYZ MDL Molfile Co-ordinate Animation Format (MDL Information Systems, Inc.)

XYZ Graph Coordinates

XYZ RPG Maker Graphic Format (Enterbrain, Inc.)

XYZ XYZZLY Plug-In for RealPlayer

XYZ Förderdiagnose Data File (Bettinger Software)

XYZ XMol XYZ

XYZI 3rdTech Scanner File

XYZRGB 3rdTech Scanner File

X_B Parasolid CAD File

X_T Parasolid CAD File

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