| out | Altair FEKO POSTFEKO ASCII Output Data |
| out | BibExcel OUT Data |
| out | Catapult DCT2000 Trace Data |
| out | FAST Output Data |
| out | Fire Dynamics Simulator Output Data |
| out | Movie.BYU Output Data |
| out | MyInfo Document Outline Data |
| out | Nastran Tabular Output |
| out | NovaBACKUP Backup Data |
| out | RMCProfile Results Data |
| out1 | UltraEdit Outline Data |
| outb | FAST Binary Output Data |
| outjob | Altium Designer OutputJob Data |
| outline | FontTwister Letter Outline Data |
| ouv | Sphinx Open Ended Responses Data |
| oux | BibExcel OUX Data |
| oux | PCCharge Transaction Response XML File |
| ov | OpenInsight Overflow Data |
| ov1 | MS-DOS Overlay Data |
| ov2 | MS-DOS Overlay Data |
| ov2 | TomTom POI Database |
| ov3 | MS-DOS Overlay Data |
| ov4 | MS-DOS Overlay Data |
| ov5 | MS-DOS Overlay Data |
| ova | Web Studio Project Page |
| ovb | OnkoS Vocabulary Backup Data |
| ovd | OverDisk Data |
| overlay | Streamlabs OBS Overlay Data |
| ovf | Open Virtualization Format Data |
| ovi | PC-9801 FM System Data |
