| Extension | Description | File Type |
|---|
| !ut | BitTorrent | Misc Files |
| 000 | Image Data Recovery File | Disk Image Files |
| 001 | Norton Ghost Span File | Backup Files |
| 001 | Multiple Volume Compressed File | Archived Files |
| 003 | Drive Image 5 Setup File | Archived Files |
| 01 | Dos Pipe File | Developer Files |
| 1 | Inno Setup Binary File | Developer Files |
| 10 | IBM Voice Type Script File | Data Files |
| 2 | Setup Factory 6.0 setup launcher | Developer Files |
| 25 | Salt Lake City Game Music File | Audio Files |
| 2da | 2 Dimensional Data Array Files | Game Files |
| 3 | Salt Lake City Game Music File | Audio Files |
| 3dr | 3DMark Benchmark File | Misc Files |
| 3ds | 3D Studio Max Mesh File | 3D Files |
| 3g2 | 3GPP2 file format | Video Files |
| 3ga | Mobile Telephone Audio File | Audio Files |
| 3gp | 3GPP | Video Files |
| 6 | Salt Lake City Music File | Game Files |
| 7z | 7-Zip File Archive | Archived Files |
| 8bf | Photoshop Plugin File | Misc Files |
| 8bi | Photoshop Plugin File | Plugin Files |
| _p | Malicious Software Removal Tool Temporary File | Misc Files |