Add file extension

File extensions sorted alphabetically - starting with a letter U

File extension The full name of the file extension
File extension .U Subsampled Raw YUV Bitmap Image
File extension .U00 The Price Is Right 2010 Game
File extension .U01 Barudan Embroidery
File extension .U08 UFile Data
File extension .U10 UFile 2010 Tax Return Format
File extension .U11 UFile 2011 Tax Return Format
File extension .U12 UFile 2012 Tax Return Format
File extension .U255LAW Exponential 8-bit Sound
File extension .U2CAR NFS:U2 Car
File extension .U32 Authorware Cover
File extension .U3D Universal 3D Format
File extension .U3I U3 Application Information Format
File extension .U3P U3 Platform Install Format
File extension .U8 Lemings 3D Audio Format
File extension .U96 EasyZip Temporary
File extension .UAE WinUAE Configuration
File extension .UAL Entrust Unattended Login Credentials
File extension .UAP SIMATIC WinCC User Archive Export
File extension .UAQ Microsoft Windows Action Queue
File extension .UAS Ulead PhotoImpact Backup
File extension .UAV OpenPilot UAV Settings
File extension .UAX Unreal Audio Format
File extension .UB Unsigned Byte Audio Format
File extension .UBIFS Linux UBIFS Image
File extension .UBJ Universal Binary JSON Fiile
File extension .UBM IPhoto Mtwain Install
File extension .UBOX Universe Sandbox Saved Data Format
File extension .UBR IIS WCAT Configuration
File extension .UC UnrealScript Class
File extension .UC2 UltraCompressor II Compressed Archive Format
File extension .UCCAPILOG Microsoft Windows Live Messenger UCC API Log Format
File extension .UCD Prosa Diagram
File extension .UCE Microsoft Windows XP System32 Format
File extension .UCF WebEx Universal Communications Format
File extension .UCI UFS Explorer Backup Format
File extension .UCL Unreal Tournament Cache Format
File extension .UCLS ObjectAid UML Explorer Class Diagram
File extension .UCM Urban Chaos Game Format
File extension .UCP SmartWare Communications Profile
File extension .UCR MicroSim PCBoard Unrouted Nets Report
File extension .UCS Homeworld Localized Unicode Strings
File extension .UCSETTINGS Universal Converter Settings
File extension .UCT UC Browser Theme Format
File extension .UCV Universal Converter Conversion
File extension .UCX Rational XDE
File extension .UD OmniPage User Dictionary
File extension .UDA ZEMAX Model Data
File extension .UDB Dynamics AX User Database Format
File extension .UDC Adobe User Dictionary Format
File extension .UDCX Microsoft Office Universal Data Connection Format
File extension .UDEB Debian Package Format
File extension .UDF Universal Disk Format
File extension .UDG UDraw(Graph)
File extension .UDI CorelDRAW Draw Script Textures Bitmap
File extension .UDID Google Android Unique Device IDentifier
File extension .UDIF Apple Mac OS X Universal Disk Image Format
File extension .UDK Unreal Map Format
File extension .UDL Microsoft Data Link Format
File extension .UDM MapView User Module
File extension .UDO Moray UDO 3D
File extension .UDP Corel VideoStudio Scene Information
File extension .UDS FIMware Database Format
File extension .UDW Raw Unsigned DoubleWord (32-bit) Data
File extension .UDX PI Expert Design Software
File extension .UEA Protector Suite QL Format
File extension .UEED Uconomix Encryption Engine Encrypted Directory
File extension .UENC UltraEdit Encrypted Text
File extension .UES Ulead Photo Explorer Slide Show
File extension .UEW UltraEdit Wordfile
File extension .UEZ Ulead COOL 3D Graphics
File extension .UFA GIF Animator Animation Object Information
File extension .UFC SATURN Suite
File extension .UFDR UFED Physical Analyzer Report Package
File extension .UFF DataWave SciWorks Physiological Data
File extension .UFI UFOCaptureV2
File extension .UFO Ulead PhotoImpact Object Format
File extension .UFP Ulead Photo Project
File extension .UFR Ultra Fractal Format
File extension .UFS FreeBSD PC-BSD Unix File System Format
File extension .UFS.UZIP FreeBSD Compressed Unix File System Format
File extension .UFX Ultimate 3D Game Engine Material
File extension .UGD Need For Speed Underground
File extension .UGR Apophysis Gradient
File extension .UHA UHARC Compressed Archive
File extension .UHH Eurotherm Hydra History Encrypted
File extension .UHS Universal Hint System Binary
File extension .UHTM Unreal Tournament
File extension .UHTML UHTML Document Format
File extension .UI User Interface Format
File extension .UIBAK UltraISO Backup Disk Image
File extension .UIC COCO Unit ICon
File extension .UID IBM Voice Type Users
File extension .UID-ZPS Zoner Photo Studio Picture Autobackup
File extension .UIF MagicISO Universal Image Format
File extension .UIL IBM AIX User Interface Language
File extension .UIN ICQ 2001 Saved ICQ Contact Information
File extension .UIR LabWindows User Interface Resource
File extension .UIS WindowBlinds Personality Format
File extension .UIT UIX XML Template
File extension .UIX UiXML Page
File extension .UIZ Spybot Search & Destroy Updater
File extension .UK English (British) Language Translation
File extension .UKA Fifa World Cup Game Data
File extension .UKS Microsoft Works
File extension .UKX Unreal Tournament Animation Format
File extension .UKY UltraMixer Licence Key
File extension .ULAW Raw CCITT/ITU G.711 US Telephony Audio Format
File extension .ULB COBOL Unisys Library
File extension .ULD Unified Luminaire Datafile
File extension .ULF Universal List Format
File extension .ULP EAGLE Script
File extension .ULS NetMeeting User Location Service Format
File extension .ULT Ultratracker Music Module (MOD) Format
File extension .ULW U-Law Audio Format
File extension .ULYS Ulysses Project
File extension .ULZ USBlyzer Data Capture Format
File extension .UMB MemMaker Backup
File extension .UMD UMD Mobile Ebook
File extension .UMF MediaHolder Media Format
File extension .UML Visual UML Class Diagram & Model Format
File extension .UMLCLASS Java UML Class Model Format
File extension .UMLX Visual UML XML Model
File extension .UMM Unified Molecular Modeling
File extension .UMOD Unreal Tournament MOD Installation Package Format
File extension .UMP UModel Project
File extension .UMR MyEclipse UML Model Repository
File extension .UMS Rune 3D Mesh Format
File extension .UMX Deus Ex Format
File extension .UNA SIMS Unauthorized Data
File extension .UNAUTH SiteMinder Unauthorized Message Format
File extension .UNCOMPRESSED_SIZE Singularity Game
File extension .UNF Btreive Unformatted
File extension .UNI UniMOD/MikMOD Music Module Format
File extension .UNITXT YS FLIGHT Language
File extension .UNITY Unity Scene Format
File extension .UNITY3D Unity Scene Web Player Format
File extension .UNITYPACKAGE Unity Package Format
File extension .UNITYPROJ Unity 3D Project
File extension .UNIT_VARIANT Total War Unit Variant Settings
File extension .UNIX Unix
File extension .UNK UVProbe Format
File extension .UNKNOWN Unknown File Extension
File extension .UNL Garmin MapSource Unlock Format
File extension .UNQ ACT! 3.0 Email Message Attachment
File extension .UNR Unreal Map Format
File extension .UNS Visual Navigation Suite Export Or Import Settings
File extension .UNT AutoCAD Unit Definition Format
File extension .UNUSED Photoline 4 Defaults
File extension .UNV BusinessObjects Universe
File extension .UNX Unix Text Format
File extension .UOF Uniform Office Format
File extension .UOL PhotoImpact Clipart Image
File extension .UOP Unified Office Format Presentation Format
File extension .UOS Unified Office Format Spreadsheet Format
File extension .UOT Unified Office Format Text Format
File extension .UPC Ultimate Paint Component
File extension .UPD Update Format
File extension .UPDATE ISAPI Update Format
File extension .UPDATR IConomy Update Format
File extension .UPDF UltraPdf Publication
File extension .UPF Nokia Phone Digital Photo Format
File extension .UPG Firmware Upgrade Format
File extension .UPI Ulead PhotoImpact Plugin
File extension .UPJ Ulead Project
File extension .UPK Unreal 3 Game Data Package Format
File extension .UPK0 Metro 2033 Game
File extension .UPL StarMoney Agent Download
File extension .UPM PenMail
File extension .UPO DBASE Compiled Update Data
File extension .UPOI IGO Points Of Interest Format
File extension .UPP Ghostscript Uniprint Unified Printer Parameter
File extension .UPR FileMaker User Spelling Dictionary
File extension .UPS Microsoft Works
File extension .UPX Ultimate Packer For EXecutable Format
File extension .UPZ StarMoney Agent Download
File extension .UQM The Ur-Quan Masters Archive Format
File extension .URC Unicenter Remote Control
File extension .URD Ultra Recall Database
File extension .URD-JOURNAL Ultra Recall Journal Update
File extension .URF AppFace Skin
File extension .URL Internet Shortcut - URL - Uniform Resource Locator
File extension .URLS GetRight Internet Shortcuts List
File extension .URL_ Internet Shortcut - URL - Uniform Resource Locator
File extension .URP Universal Report
File extension .URQ Review QuickChart Chart
File extension .URR Uniface Signatures Format
File extension .URS ControlDraw User Requirement Specifier
File extension .URT Utah Run-Length Encoded Bitmap Image Format
File extension .US English Language Translation
File extension .US? Microsoft Word Font
File extension .USA Microsoft Office Headers Format
File extension .USB SiSoftware Sandra
File extension .USC USC Module Definition
File extension .USECASEDIAGRAM Microsoft Visual Studio Use Case Diagram
File extension .USEQ USeq Genome Data Format
File extension .USER Microsoft Visual Studio Project User Options Format
File extension .USERPROFILE Norton Antivirus User Profile Format
File extension .USERTILE-MS Microsoft Windows 8 Release Preview User Tile Format
File extension .USF Nintendo Ultra 64 Sound Format
File extension .USFLIB Nintendo 64 Song Library Format
File extension .USG PC-Doctor For Windows
File extension .USH Creston SIMPL Windows
File extension .USI UsiXML UI Description
File extension .USL ProWORX Nxt USL Loadable
File extension .USM USM Game Video Format
File extension .USP PageMaker Printer Font
File extension .USR FileMaker Pro Runtime Engine Database Application
File extension .USS WinUAE Saved State
File extension .UST WiFi SiStr Exported User Theme Format
File extension .USTAR Uniform Standard Tape Archive Format
File extension .USX Unreal StaticMesh (hardware Brushes) Format
File extension .UT2 Unreal Tournament Map Format
File extension .UT2MOD Unreal Tournament 2003 MOD Installation Package Format
File extension .UT3 Unreal Tournament 3 Map Format
File extension .UT4MOD Unreal Tournament 2004 MOD Installation Package Format
File extension .UT8 Ghost Master Language Format
File extension .UTB µTBackup Backup
File extension .UTC BioWare Aurora Game Engine Creature Format
File extension .UTD BioWare Aurora Game Engine Door
File extension .UTE BioWare Aurora Game Engine Encounter
File extension .UTF8 Unicode UTF-8 Encoded Text
File extension .UTI Spybot - Search & Destroy Includes
File extension .UTL QuickBooks Data
File extension .UTM BioWare Aurora Game Engine Store
File extension .UTP BioWare Aurora Game Engine Placeable Object
File extension .UTPART µTorrent Unfinished Download
File extension .UTS Spybot - Search & Destroy Include
File extension .UTT BioWare Aurora Engine Trigger
File extension .UTW Unity Whirld Format
File extension .UTX Unreal Texture Format
File extension .UTXT Unicode Text Format
File extension .UTZ UIQ Theme Package
File extension .UU Uuencoded (compressed) File Archive (ascii)
File extension .UUD UUDecoded Format
File extension .UUE UUEncoded Format
File extension .UUS Ultra Utility Skin
File extension .UV2 µVision Project
File extension .UVCAB UVScreenCamera Films
File extension .UVF Uncertain Value Format
File extension .UVNTS UVScreenCamera Notes
File extension .UVPROJ µVision4 Project
File extension .UVR UVR Mesh
File extension .UVS UVScreenCamera Segments
File extension .UVSEG UVScreenCamera Segments
File extension .UVW 3D Studio MAX UVW Coordinates
File extension .UVX Unreal Tournament Saved Game
File extension .UW Unsigned Word (16-bit) Music Format
File extension .UWF UltraTracker WaveSample Music Format
File extension .UWL Corel WordPerfect User Word List Format
File extension .UXDC Microsoft Excel Data Retrieval Service Connection
File extension .UXF UMLet UML EXchange Format
File extension .UXX Unreal Tournament 2003 Cache Format
File extension .UXY Barudan Embroidery Outline
File extension .UYVY YUV 16-bit Image Format
File extension .UZ2 Unreal Tournament Compressed
File extension .UZE UltimateZip Compressed Archive
File extension .UZIP FreeBSD Compressed Disk Image Format
File extension .UZY Backdoor.Sokacaps