File Extensions Abbreviations and Acronyms

1. ULW
   U-law Audio File
2. ULX
   Glulx data file
3. ULX
   Glulx Game File
4. ULZ
   Usblyzer Data Capture File
5. UMB
   MemMaker Backup file
6. UMD
   Splinter Cell Blacklist Game Data File
7. UMF
   Mediaholder Universal Media Format File
8. UML
   Uml Data Object Model
9. UMOD
   Unreal Tournament Module File
10. UMS
    Rune 3d Mesh File
11. UMX
    Unreal Music Package
12. UND
    Undefined symbols
13. UNI
    Mikmod Unimod Module
14. UNITY
    Unity Scene File
15. UNK
    Unknown File
16. UNL
    Garmin Unlock File
17. UNR
    Unreal Level Map
18. UNT
    Autocad Unit Definition File
19. UNV
    SDRC I-DEAS file
20. UNX
    Text file containing UNIX specific information

Last updated: March 20, 2022 — Total entries: 12,444