U
Ext. | Description | Used by |
---|---|---|
U3D | Model file format | Ultimate 3D |
U3D | Universal 3D | Adobe Acrobat |
U8 | Sample | |
UB | Raw Unsigned Byte (8bit) data | AWAVE |
UC2 | Archive | UC II |
UCN | New archive | UC II |
UCS | Unknownsoft Service Pack (mainly for Shadow OS 2009) | Unknownsoft Computer Systems |
UDF | Filter | Aldus Photostyler |
UDO | Data | Moray User Defined Object |
UDIWWW | bookmark data | UdiWWW |
UDW | Raw Unsigned DWord data | AWAVE |
UE2 | Encrypted archive | UC II |
UFI | data | UFO CaptureV2 settings - |
UFO | graphic file | Ulead Photo Impact |
UHA | UHarc archive | |
UHS | Universal Hint System (binary file) | |
UI | Espire source code file | Geoworks UI Compiler Geos |
UI | Qt Designer's UI File | Trolltech Qt Designer |
UI | User interface | Sprint |
UIF | Long prompts for windows | WordPerfect for Win |
UIH | Espire header file | Geoworks UI Compiler Geos |
UL | ULAW audio file | |
ULD | Information about uploaded files | Procomm Plus - Datastorm Technologies, Inc. |
ULF | data | MRF Mapping Tool Kit Universal List Format |
ULT | Music | UltraTracker |
UMB | Backup file | MemMaker |
UNF | Universal NES Image Interchange File Format | |
UNI | Datafile | Forecast Pro |
UNI | Music format | UNIMOD - MIKMOD |
UNIF | Universal NES Image Interchange File Format | |
UNV | Text file containing finite elements nodal coordinates and more See notes | Originally used by SDRC for its I-deas software; a lot of simulation software use it today |
UNX | Text file containing UNIX specific info | |
UOML | UniqueObject Markup Language (UOML) is a XML-based markup language | |
UOP | Uniform Office Format presentation | |
UOS | Uniform Office Format spreadsheet | |
UOT | Uniform Office Format text | |
UPD | Update data | dBASE |
UPO | Compiled update data | dBASE |
URL | Internet Shortcut (URL) | Windows Explorer |
URT | Utah Raster Toolkit | |
USE | Log file | |
USP | Printer font with USASCII extended character set | Adobe PageMaker |
USR | User database file | Procomm Plus - Turbo C++ tour |
UST | UTAU vocal track | UTAU |
UT! | datafile | uTorrent |
UTZ | Mobile Phone Theme | Sony Ericsson |
UU | Encoded file (ASCII) | UUENCODE/UUDECODE - Uuencoding |
UUE | Encoded file (ASCII) | UUENCODE/UUDECODE - Uuencoding |
UW | Raw Unsigned Word 16bit data | AWAVE |
UWF | UltraTracker WaveSample | UltraTracker |
Read more about this topic: List Of File Formats (alphabetical)