File types with extensions that start with the letter X

File Extention	File Type	Description
.x	3D Image	DirectX Model File
.x	Developer	Lex Source Code File
.x32	Plugin	Adobe Xtra File
.x3d	3D Image	Xara3D Project
.x3f	Camera Raw	SIGMA X3F Camera RAW File
.x4k	Settings	XML4King Configuration File
.x64	Disk Image	Commodore 64 Disk Image
.x86	Executable	Linux Executable File
.x_b	CAD	Parasolid Model Part File
.x_t	CAD	Parasolid Model Part File
.xa	Audio	PlayStation Audio File
.xa	Disk Image	GEAR CD/DVD Disc Image
.xa	Audio	The Sims Audio File
.xadd	Plugin	Expression Web Add-in
.xaf	Data	Affirm Deposition Transcript
.xaf	3D Image	3ds Max XML Animation File
.xaf	3D Image	Cal3D XML Animation File
.xaiml	Data	XAIML Chatterbot Database File
.xaml	Developer	XAML File
.xamlx	Developer	Visual Studio Workflow Service File
.xan	Game	Worms Map File
.xap	Developer	XACT Project
.xap	Executable	Silverlight Application Package
.xappl	Data	Spoon XML Application Configuration File
.xar	Vector Image	Xara Xtreme Drawing
.xar	Spreadsheet	Excel Auto-Recovery File
.xas	Data	Pro/ENGINEER Assembly Instance Accelerator File
.xba	Plugin	OpenOffice.org Basic Module File
.xbap	Executable	XAML Browser Application File
.xbc	Data	SMART Notebook File
.xbdoc	Text	Xiosis Scribe Document
.xbe	Game	Xbox Executable File
.xbel	Web	XBEL Bookmarks File
.xbf	Developer	XAML Binary File
.xbk	Backup	XenServer Backup File
.xbk	Data	SMART Notebook File
.xbl	Web	Extensible Binding Language File
.xbm	Raster Image	X11 Bitmap Graphic
.xbplate	Text	Xiosis Scribe Template
.xbsav	Game	Mass Effect 2 Xbox Saved Game
.xbt	Data	SMART Notebook Template File
.xcappdata	Developer	Xcode App Data File
.xcarchive	Developer	Xcode Archive
.xcdatamodel	Developer	Xcode Core Data Model File
.xcdatamodeld	Developer	Xcode Core Data Model File
.xcf	Raster Image	GIMP Image File
.xcode	Developer	Xcode Project
.xcodeproj	Developer	Xcode Project
.xcsl	Data	CineStyle Color Correction File
.xcsnapshots	Developer	Xcode Snapshot
.xcu	Settings	OpenOffice.org Configuration File
.xcworkspace	Developer	Xcode Workspace File
.xdb	Database	PowerDesigner Database Definition File
.xdb	Data	Symantec Virus Database File
.xdi	Disk Image	WinArchiver Extended Disc Image File
.xdl	Text	Oracle Expert Definition Language File
.xdl	Text	XML Schema File
.xdp	Data	XML Data Package
.xdr	Settings	XML-Data Reduced File
.xds	Data	LcdStudio Design File
.xds	Game	DS Game Maker Project File
.xdw	Page Layout	Fuji Xerox DocuWorks File
.xef	Data	eManager Form Data
.xef	Compressed	WinAce Encrypted File
.xej	Video	Expression Encoder Job File
.xel	Video	Expression Encoder Live Encoding File
.xem	Data	PowerDesigner Model definition File
.xem	Settings	eManager Metered Units
.xen	Game	Guitar Hero III Data File
.xensearch	Misc	XenCenter Saved Search File
.xep	Settings	eManager File Packaging Information
.xer	Data	Primavera P6 Project File
.xes	Settings	eManager Skins Definition
.xesc	Video	Expression Encoder Screen Capture File
.xet	Settings	eManager Process Definition
.xev	Settings	eManager Auto-Update File
.xex	Game	Xbox 360 Executable File
.xez	Compressed	eManager Template Package
.xfb	System	Xserve RAID Firmware Binary File
.xfd	Data	XFD File
.xfd	Data	FormFlow 99 Form Data File
.xfdf	Data	Adobe Acrobat XFDF File
.xfdl	Web	XFDL File
.xfl	Video	Flash Movie Archive
.xfn	Font	Ventura Printer Font
.xfo	Data	XSL-FO Formatted Form
.xfr	Data	iProcess Process Definition File
.xfs	Audio	eRacer Sound File
.xft	Font	ChiWriter Printer Font
.xft	Data	Adobe Form Designer 5.0 File
.xgml	Data	Graph Modeling Language XML File
.xgmml	Data	XGMML Graph File
.xgp	Data	Xfire Game Patcher File
.xgs	Settings	XACT Global Settings File
.xht	Web	XHTML File
.xhtm	Web	Extensible Hypertext Markup Language Document
.xhtml	Web	Extensible Hypertext Markup Language File
.xi	Audio	Fasttracker 2 Extended Instrument File
.xib	Developer	Interface Builder File
.xif	Page Layout	ScanSoft Pagis File
.xise	CAD	Xilinx ISE Project File
.xl	Spreadsheet	Excel Spreadsheet
.xla	Plugin	Excel Add-In File
.xlam	Plugin	Excel Open XML Macro-Enabled Add-In
.xlb	Settings	OpenOffice.org Module Information File
.xlb	Settings	Excel Toolbars File
.xlc	Data	Excel Chart
.xld	Database	Excel Database File
.xlf	Data	XLIFF Document
.xlgc	Data	ExpressK Database File
.xliff	Data	XLIFF Localization File
.xlk	Backup	Excel Backup File
.xll	Plugin	Excel Add-In File
.xlm	Executable	Excel Macro
.xlmv	Video	Xunlei Movie File
.xlnk	Misc	XML Shortcut File
.xlr	Spreadsheet	Works Spreadsheet
.xls	Spreadsheet	Excel Spreadsheet
.xlsb	Spreadsheet	Excel Binary Spreadsheet
.xlshtml	Spreadsheet	Microsoft Excel HTML Spreadsheet
.xlsm	Spreadsheet	Excel Open XML Macro-Enabled Spreadsheet
.xlsmhtml	Spreadsheet	Microsoft Excel MIME HTML Spreadsheet
.xlsx	Spreadsheet	Microsoft Excel Open XML Spreadsheet
.xlt	Data	Excel Template
.xlthtml	Spreadsheet	Microsoft Excel HTML Spreadsheet Template
.xltm	Spreadsheet	Excel Open XML Macro-Enabled Spreadsheet Template
.xltx	Spreadsheet	Excel Open XML Spreadsheet Template
.xlv	Plugin	Excel Visual Basic Module
.xlw	Misc	Excel Workspace File
.xlw	Data	Excel Workbook
.xm	Audio	Fasttracker 2 Extended Module
.xmap	Data	XMind 2007/2008 Workbook
.xmb	Game	Age of Empires Game Data File
.xmb	Game	X-Wing Mission Briefing File
.xmcd	Data	Mathcad Worksheet File
.xmcdz	Compressed	Mathcad Compressed Worksheet File
.xmct	Data	Mathcad XML Worksheet Template
.xmd	Disk Image	Extended Media Disc Image
.xmd	Plugin	Bitdefender Plugin File
.xmf	Disk Image	GameJack Disc Image File
.xmf	Audio	Extensible Music File
.xmf	3D Image	Cal3D XML Mesh File
.xmi	Data	XML Metadata Interchange File
.xmi	Audio	Extended MIDI File
.xmind	Vector Image	XMind Workbook File
.xml	Data	XML File
.xmlper	Data	LeCroy Binary Waveform File
.xmm	3D Image	3ds Max XML Animation Map File
.xmmap	Vector Image	MindManager XML Map File
.xmp	Misc	Extensible Metadata Platform File
.xmpz	Data	Miradi XML Project File
.xmv	Video	Xbox Media Video File
.xmz	Audio	FastTracker 2 Extended Module
.xnb	Game	XNA Game Studio Binary Package
.xnk	Misc	Exchange Shortcut
.xnt	Plugin	QuarkXPress Extension File
.xof	3D Image	Reality Lab 3D Image File
.xol	GIS	Swiss Map Overlay
.xol	Misc	PowerDesigner Object Language File
.xom	Game	Worms 3D Object File
.xoml	Developer	Windows Workflow File
.xp	Audio	Fastracker 2 Pattern
.xp	Game	XPilot Map
.xp2	Game	XPilot NG
.xp3	Game	KiriKiri Package File
.xp4	Game	KiriKiri Package
.xpaddercontroller	Settings	Xpadder Controller Profile
.xpd	Game	PlayStation Store PSP License File
.xpd	Web	XML Pipeline Document
.xpdl	Data	XPDL Module
.xpf	Audio	LMMS Preset File
.xpg	Data	Autoplay Media Studio Exported Page
.xpi	Plugin	Mozilla Installer Package
.xpj	Data	RoboHelp HTML Project File
.xpj	Data	Micro Planner X-Pert Project File
.xpk	Game	WWE RAW Model File
.xpl	Settings	LcdStudio Playlist File
.xpm	Data	Micro Planner Manager File
.xpm	Raster Image	X11 Pixmap Graphic
.xpp	Developer	X++ Source Code File
.xpr	3D Image	Pro/ENGINEER Part Instance Accelerator File
.xpr	Misc	PressIt Disc Label
.xpr	Vector Image	Microsoft Expression Design Graphic
.xpr	Data	SyncRO Soft oXygen XML Editor Project
.xps	Page Layout	XML Paper Specification File
.xpt	Data	SAS Transport File
.xpt	Plugin	Mozilla Firefox Component
.xq	Developer	XQuery File
.xql	Developer	XML Query Language File
.xqm	Developer	XQuery Module
.xqt	Executable	SuperCalc Macro File
.xquery	Developer	XQuery Source Code File
.xqy	Developer	XQuery Source File
.xrf	3D Image	Cal3D XML Materials File
.xrff	Data	Extensible Attribute-Relation File Format
.xrm-ms	System	Microsoft Security Certificate
.xrns	Audio	Renoise Song File
.xrp	Data	RationalPlan Project File
.xry	Data	XRY Data File
.xs	Game	Age of Empires 3 Map AI Generator
.xsb	Audio	XACT Sound Bank
.xsc	Data	Visual Studio Dataset Internal Info File
.xsd	Developer	XML Schema Definition
.xsf	Data	InfoPath Form Definition File
.xsf	3D Image	Cal3D XML Skeleton File
.xsi	3D Image	Softimage XSI 3D Image
.xsiaddon	Plugin	Softimage Add-on File
.xsl	Data	XML Style Sheet
.xslic	Misc	XenServer License File
.xslt	Data	XSL Transformation File
.xsn	Page Layout	InfoPath Form Template File
.xsp	Audio	XBMC Smart Playlist File
.xspf	Audio	XSPF Playlist File
.xss	Web	XML Style Sheet
.xst	Settings	WebSphere Query Template
.xsvf	Data	Xilinx Serial Vector Format File
.xsx	Developer	Visual Studio XML Schema Layout File
.xt	Developer	Xdebug Trace File
.xt	Audio	Fastracker 2 Track
.xtg	Data	Extensible TreeGraph File
.xtl	Game	Vietcong Data File
.xtm	Data	CmapTools Exported Topic Map
.xtm	Data	Xtremsplit Data File
.xtp	Data	xTime Project Document
.xtp	Data	XTree Data File
.xtp	Page Layout	InfoPath Template Part File
.xtp	Settings	AutoCAD Exported Tool Palettes File
.xtreme	Settings	Winstep Xtreme Theme Pack
.xui	Settings	Xbox 360 User Interface File
.xul	Web	XML User Interface Language File
.xur	Settings	Xbox 360 Binary User Interface File
.xv0	3D Image	Lattice XVL Structure File
.xv3	CAD	Lattice XVL Geometry File
.xva	Disk Image	XenServer Virtual Appliance File
.xvct	Data	VISE XML Project File
.xvid	Video	Xvid-Encoded Video File
.xvm	Settings	VMware Console Configuration File
.xvmconf	Game	World of Tanks XVM Configuration File
.xwb	Audio	XACT Wave Bank
.xwd	Raster Image	X Windows Dump Image
.xwf	Misc	OmniPage Workflow File
.xwk	Settings	Crosstalk Communicator Keyboard Mapping File
.xwp	Text	XMLwriter Project
.xwp	Text	Xerox Writer Text Document
.xwp	Text	Crosstalk Session File
.xws	Web	Xara Web Designer Graphic
.xx	Compressed	XXEncoded File
.xxd	Data	Brixx Planner Calendar
.xxe	Encoded	XXEncoded File
.xxx	Misc	Compucon Singer Embroidery File
.xy	Text	XYWrite Document
.xy3	Text	XYWrite III Document
.xyp	Text	XYWrite Plus Document
.xys	Executable	XYplorer Script File
.xyw	Text	XYWrite for Windows Document
.xyz	Data	Molecule Specification File
.xyz	Data	Celestia Sampled Trajectory Data File
.xyzv	Data	Celestia Sampled Trajectory File
.xz	Compressed	XZ Compressed Archive
.xzfx	Page Layout	ZipLogix ZipForm File