| UAP |
User
agent profile (Used by wireless telephony applications) |
| UB |
Raw
unsigned byte (8-bit) data |
| UC2 |
Compressed
archive (UltraCompressor II) |
| UCN |
New
compressed archive (UltraCompressor II) |
| UDF |
Unique
Database (Microsoft Windows NT) |
| UDF |
Image
filter (Photostyler) |
| UDW |
Raw
unsigned doubleword (32-bit) data |
| UE2 |
Encrypted
archive (UltraCompressor II) |
| UFO |
Object
file (Ulead) |
| UG |
Drawing
file (AutoCAD and others) |
| UHS |
Binary
file (Universal Hint System) |
| UI |
Espire
source code (Geoworks UI Compiler) |
| UI |
User
interface file (Sprint) |
| UIF |
Long
prompts for Microsoft Windows ((Microsoft WordPerfect for Windows) |
| UIH |
Espire
header file (Geoworks UI Compiler) |
| UL |
Audio
file (ULAW) |
| ULAW |
(CCITT
G.711) audio (US Telephony) |
| ULD |
Uploaded
file information (Procomm Plus) |
| ULT |
Music
module (MOD) (UltraTracker) |
| UMB |
Backup
file (archive) (MemMaker) |
| UNI |
UniMod
music module (MOD) (MikMod) |
| UNI |
Datafile
(Forcast Pro) |
| UNX |
Text
file (Unix specific information) |
| UPD |
Updated
program data (Generic) |
| UPD |
Updated
program data (dBase) |
| UPI |
Program
file (ULead Photo Impact) |
| UPO |
Compiled
updated datafile (dBase) |
| UPX |
Saved
Image file (ULead Photo Express) |
| URF |
Universal
radar format (Radar ViewPoint) |
| URL |
Internet
shortcut file (Universal Resource Locator) |
| USE |
Source
Integrity file (MKS) |
| USP |
Printer
font w/updated USACII extended character set (Pagemaker) |
| USR |
User
database file (Procomm Plus) |
| USR |
Audit
trail file (Pro/Engineer) |
| USR |
User
database file (Turbo C++) |
| USR |
User
database file (Tour) |
| UU |
UU-encoded
file |
| UU |
Compressed
ASCII archive (UUDE/ENCODE) |
| UUE |
Executable
compressed ASCII archive (UUDE/ENCODE) |
| UUE |
UU-encoded
file |
| UW |
Raw
unsigned 16-bit) datafile (Word) |
| UWF |
Wave
file (UltraTracker) |
