| psarc | Sony PlayStation 3 Game Archive |
| psb | Navicat Backup File |
| psc | Navicat Compressed Backup File |
| pup | Puppy Linux DotPup Package |
| pupg | Efficia DFM100 Software Upgrade Package |
| put | Microfox PUT Compressed Archive |
| puz | Microsoft Publisher Packed Document |
| pv | PV Elite Archive |
| pwv | SSE Password Vault Archive |
| pwzip | Polyworks Compressed Archive |
| pzip | WinZip Mac Archive |
| pzv | PTC Creo View MCAD Package |
| qar | Altera Quartus II Project Archive |
| qda | Quadruple D Archive |
| qdz | Altera Quartus II Device Package |
| qfc | QFC Archive |
| qic | Windows 95/98/ME Backup |
| qlz | QPress QuickLZ Compressed Archive |
| qp | QPress QuickLZ Compressed Archive |
| qp03 | QPress QuickLZ Compressed Archive |
| qpk | QNX Package File |
| qpkg | QNAP QTS Package |
| qq | Shrinkit BLU Archive |
| qqa | Quanquest Archive Data |
| qsb | Lenovo Smartphone Firmware Update |
| qta | Tape Archive |
| qtar | Tape Archive |
| qtsk | Qtracker PlayerWatch Skin Package |
| quad | QUAD Compressed Archive |
| quicklz | QPress QuickLZ Compressed Archive |
| qup | QuickTime Update Package |
| qze | QZip Encrypted Archive |
| r00 | WinRAR Archive |
| r01 | WinRAR Archive |
| r02 | WinRAR Archive |
