| .U |
AU Audio File |
Free U Apps |
| .U |
Subsampled Raw YUV Image |
Free U Apps |
| .U |
Unreal Tournament Class Package |
Free U Apps |
| .U10 |
UFile 2010 Tax Return |
Free U10 Apps |
| .U11 |
UFile 2011 Tax Return |
Free U11 Apps |
| .U12 |
UFile 2012 Tax Return |
Free U12 Apps |
| .U3D |
Universal 3D File |
Free U3D Apps |
| .U3I |
U3 Application Information File |
Free U3I Apps |
| .U3P |
U3 Smart Application |
Free U3P Apps |
| .U8 |
Mario Kart Wii Archive |
Free U8 Apps |
| .U8 |
3D Lemmings Audio File |
Free U8 Apps |
| .UASSET |
Unreal Asset File |
Free UASSET Apps |
| .UAX |
Unreal Audio Package |
Free UAX Apps |
| .UB |
Unsigned Byte Audio File |
Free UB Apps |
| .UBJ |
Universal Binary JSON File |
Free UBJ Apps |
| .UBOX |
Universe Sandbox Data File |
Free UBOX Apps |
| .UC |
UnrealScript Class |
Free UC Apps |
| .UC2 |
UltraCompressor 2 Archive |
Free UC2 Apps |
| .UCCAPILOG |
Microsoft UCC API Log File |
Free UCCAPILOG Apps |
| .UCE |
Windows UCE System File |
Free UCE Apps |
| .UCF |
WebEx Media File |
Free UCF Apps |
| .UCI |
UFS Explorer Backup File |
Free UCI Apps |
| .UCL |
Killing Floor System File |
Free UCL Apps |
| .UCM |
Crazy Machines Model File |
Free UCM Apps |
| .UCT |
UC Browser Theme File |
Free UCT Apps |
| .UD |
OmniPage User Dictionary |
Free UD Apps |
| .UDB |
Dynamics AX User Database File |
Free UDB Apps |
| .UDC |
Adobe InDesign User Dictionary |
Free UDC Apps |
| .UDCX |
Universal Data Connection File |
Free UDCX Apps |
| .UDEB |
Debian Package File |
Free UDEB Apps |
| .UDF |
Excel User Defined Function |
Free UDF Apps |
| .UDF |
Universal Disk Format File |
Free UDF Apps |
| .UDK |
Unreal Engine Map File |
Free UDK Apps |
| .UDL |
Microsoft Universal Data Link File |
Free UDL Apps |
| .UDS |
NetBackup UNIX Domain Socket File |
Free UDS Apps |
| .UDS |
Sierra Generations File |
Free UDS Apps |
| .UDS |
Uniform Data System File |
Free UDS Apps |
| .UEA |
Protector Suite QL Encrypted Archive |
Free UEA Apps |
| .UFD |
Universal Forms Description Language |
Free UFD Apps |
| .UFO |
Ulead File Object |
Free UFO Apps |
| .UFO |
Unified Font Object File |
Free UFO Apps |
| .UFR |
Upfiring File |
Free UFR Apps |
| .UFR |
Ultra Fractal File |
Free UFR Apps |
| .UFS |
FreeBSD Unix File System File |
Free UFS Apps |
| .UFS.UZIP |
Compressed Unix File System File |
Free UFS.UZIP Apps |
| .UFT |
Torque Font Cache File |
Free UFT Apps |
| .UGA |
Ulead GIF Animator File |
Free UGA Apps |
| .UGOIRA |
Ugoira Animated Image File |
Free UGOIRA Apps |
| .UGR |
Apophysis Ultra Fractal Gradient File |
Free UGR Apps |
| .UHA |
UHarc Compressed Archive |
Free UHA Apps |
| .UHTML |
UC Browser Saved Webpage |
Free UHTML Apps |
| .UI |
User Interface File |
Free UI Apps |
| .UIBAK |
UltraISO Backup Disk Image |
Free UIBAK Apps |
| .UIF |
Universal Image Format Disc Image |
Free UIF Apps |
| .UIS |
WindowBlinds User Interface Specification |
Free UIS Apps |
| .UKX |
Unreal Animation Package |
Free UKX Apps |
| .ULAW |
Raw u-Law Audio File |
Free ULAW Apps |
| .ULD |
Unified Luminaire Data File |
Free ULD Apps |
| .ULF |
Universal List File |
Free ULF Apps |
| .ULP |
EAGLE User Language Program |
Free ULP Apps |
| .ULS |
NetMeeting User Location Service File |
Free ULS Apps |
| .ULT |
UltraTracker Module |
Free ULT Apps |
| .ULW |
u-Law Audio File |
Free ULW Apps |
| .ULX |
Glulx Game File |
Free ULX Apps |
| .ULZ |
USBlyzer Data Capture File |
Free ULZ Apps |
| .UMAP |
Unreal Engine Map File |
Free UMAP Apps |
| .UMD |
Splinter Cell Blacklist Game Data File |
Free UMD Apps |
| .UMF |
MediaHolder Universal Media Format File |
Free UMF Apps |
| .UMJ |
UMAJIN |
Free UMJ Apps |
| .UML |
UML Data Object Model |
Free UML Apps |
| .UMLCLASS |
UML Class Model |
Free UMLCLASS Apps |
| .UMOD |
Unreal Tournament Module File |
Free UMOD Apps |
| .UMS |
Rune 3D Mesh File |
Free UMS Apps |
| .UMX |
Unreal Music Package |
Free UMX Apps |
| .UNAUTH |
SiteMinder Unauthorized Message File |
Free UNAUTH Apps |
| .UNF |
UNIF ROM File |
Free UNF Apps |
| .UNI |
MikMod UniMOD Module |
Free UNI Apps |
| .UNIF |
UNIF ROM File |
Free UNIF Apps |
| .UNITY |
Unity Scene File |
Free UNITY Apps |
| .UNITY3D |
Unity Web Player Archive |
Free UNITY3D Apps |
| .UNITYPACKAGE |
Unity Package File |
Free UNITYPACKAGE Apps |
| .UNITYPROJ |
Unity 3D Project |
Free UNITYPROJ Apps |
| .UNITYWEB |
Unity 3d |
Free UNITYWEB Apps |
| .UNK |
Unknown File |
Free UNK Apps |
| .UNKNOWN |
Unknown File Type |
Free UNKNOWN Apps |
| .UNL |
Garmin Unlock File |
Free UNL Apps |
| .UNR |
Unreal Level Map |
Free UNR Apps |
| .UNT |
AutoCAD Unit Definition File |
Free UNT Apps |
| .UNX |
Unix Text File |
Free UNX Apps |
| .UOF |
Uniform Office Document |
Free UOF Apps |
| .UOML |
Unique Object Markup Language |
Free UOML Apps |
| .UOP |
Ultima Online Patch File |
Free UOP Apps |
| .UOP |
Uniform Office Presentation |
Free UOP Apps |
| .UOS |
Uniform Office Spreadsheet |
Free UOS Apps |
| .UOT |
Uniform Office Document |
Free UOT Apps |
| .UPD |
Program Update Information |
Free UPD Apps |
| .UPDATE |
ISAPI Update File |
Free UPDATE Apps |
| .UPDATR |
iConomy Update File |
Free UPDATR Apps |
| .UPF |
MicroStation User Preferences File |
Free UPF Apps |
| .UPF |
Panono Unstitched Panorama Format |
Free UPF Apps |
| .UPF |
Unified Power Format File |
Free UPF Apps |
| .UPG |
Upgrade File |
Free UPG Apps |
| .UPK |
Unreal Engine 3 Package |
Free UPK Apps |
| .UPOI |
iGO Points of Interest File |
Free UPOI Apps |
| .UPR |
FileMaker User Dictionary |
Free UPR Apps |
| .UPR |
Fractal Parameters File |
Free UPR Apps |
| .UPS |
UPS Patch File |
Free UPS Apps |
| .UPX |
Ultimate Packer for eXecutables File |
Free UPX Apps |
| .UQM |
The Ur-Quan Masters Game Data File |
Free UQM Apps |
| .URI |
URI Resolution Services |
Free URI Apps |
| .URL |
Internet Shortcut |
Free URL Apps |
| .URR |
Uniface Signatures File |
Free URR Apps |
| .URT |
Utah Raster Toolkit File |
Free URT Apps |
| .USA |
Unreal Saved Game File |
Free USA Apps |
| .USD |
Universal Scene Description Format |
Free USD Apps |
| .USDZ |
Universal Scene Description Zipped Format |
Free USDZ Apps |
| .USEQ |
USeq Genome Data File |
Free USEQ Apps |
| .USER |
Visual Studio Project User Options File |
Free USER Apps |
| .USERPROFILE |
Norton AntiVirus User Profile File |
Free USERPROFILE Apps |
| .USERTILE-MS |
Windows 8 User Tile File |
Free USERTILE-MS Apps |
| .USF |
EVGA Precision X Skin File |
Free USF Apps |
| .USF |
Nintendo 64 Music File |
Free USF Apps |
| .USF |
Universal Subtitles Format File |
Free USF Apps |
| .USFLIB |
Nintendo 64 Song Library |
Free USFLIB Apps |
| .USM |
USM Game Video File |
Free USM Apps |
| .USR |
SmartMusic Custom File |
Free USR Apps |
| .USR |
FileMaker Pro Database File |
Free USR Apps |
| .USR |
Lowrance GPS Data File |
Free USR Apps |
| .UST |
UTAU Sequence Text File |
Free UST Apps |
| .USTAR |
Uniform Standard Tape Archive Format File |
Free USTAR Apps |
| .USX |
Unreal Static Meshes |
Free USX Apps |
| .UT2 |
Unreal Tournament Map |
Free UT2 Apps |
| .UT2MOD |
Unreal Tournament 2003/2004 Module File |
Free UT2MOD Apps |
| .UT3 |
Unreal Tournament 3 Map File |
Free UT3 Apps |
| .UT4MOD |
Unreal Tournament 2004 Module |
Free UT4MOD Apps |
| .UT8 |
Ghost Master Language File |
Free UT8 Apps |
| .UTC |
Bioware Creature File |
Free UTC Apps |
| .UTF8 |
Unicode UTF8-Encoded Text Document |
Free UTF8 Apps |
| .UTW |
Unity Whirld File |
Free UTW Apps |
| .UTX |
Unreal Texture Package |
Free UTX Apps |
| .UTXT |
Unicode Text File |
Free UTXT Apps |
| .UTZ |
UIQ Theme Package |
Free UTZ Apps |
| .UU |
Uuencoded File |
Free UU Apps |
| .UUD |
UUDecoded File |
Free UUD Apps |
| .UUE |
Uuencoded File |
Free UUE Apps |
| .UVA |
DECE Audio |
Free UVA Apps |
| .UVF |
Uncertain Value Format |
Free UVF Apps |
| .UVH |
DECE High Definition Video |
Free UVH Apps |
| .UVI |
DECE Graphic |
Free UVI Apps |
| .UVM |
DECE Mobile Video |
Free UVM Apps |
| .UVP |
DECE PD Video |
Free UVP Apps |
| .UVS |
DECE SD Video |
Free UVS Apps |
| .UVU |
DECE MP4 |
Free UVU Apps |
| .UVV |
DECE Video |
Free UVV Apps |
| .UVW |
UVW Coordinates File |
Free UVW Apps |
| .UVX |
Unreal Tournament 2003 Saved Game |
Free UVX Apps |
| .UW |
Unsigned Word Audio File |
Free UW Apps |
| .UWF |
UltraTracker Wave File |
Free UWF Apps |
| .UWL |
User Word List File |
Free UWL Apps |
| .UWRF |
Universal Web Radio File |
Free UWRF Apps |
| .UXF |
UML eXchange Format |
Free UXF Apps |
| .UXX |
Unreal Tournament Cache |
Free UXX Apps |
| .UZIP |
FreeBSD Compressed Disk Image |
Free UZIP Apps |