Extensions: 'U'
| Format | Description | Author | File / Link |
|---|---|---|---|
| UDF | Universal Disk Format (Acrobat) | LINK | |
| UDP | User Datagram Protocol | LINK | |
| ULT | Mysterious's ULTRA TRACKER File Format | FreeJack/Elven Nation | Download |
| UNI | UNITRK Format | Download | |
| UNIC | Unic Tracker v1/v2 formats | Asle / ReDoX | Download |
| URL | Internet Explorer URL files | Edward Blake | Download |
| UUENCODE | UU-encoded data | Jim Cameron | Download |
How to help
If you have any better information or if you find problems with these files or links please .