| pzip | WinZip Mac Archive |
| qdz | Altera Quartus II Device Package |
| qfc | QFC Archive |
| qic | Windows 95/98/ME Backup |
| qpk | QNX Package File |
| qpkg | QNAP QTS Package |
| qq | Shrinkit BLU Archive |
| qsb | Lenovo Smartphone Firmware Update |
| quad | QUAD Compressed Archive |
| qup | QuickTime Update Package |
| qze | QZip Encrypted Archive |
| r00 | WinRAR Archive |
| r01 | WinRAR Archive |
| r02 | WinRAR Archive |
| r03 | WinRAR Archive |
| r04 | WinRAR Archive |
| r05 | WinRAR Archive |
| r06 | WinRAR Archive |
| r07 | WinRAR Archive |
| r08 | WinRAR Archive |
| r09 | WinRAR Archive |
| r10 | WinRAR Archive |
| r11 | WinRAR Archive |
| r17 | WinRAR Archive |
| r30 | WinRAR Archive |
| r99 | WinRAR Archive |
| rae | TrueZIP Encrypted Archive |
| raes | TrueZIP Encrypted Archive |
| rar | WinRAR Archive |
| rdar | Reflection Desktop Customization Archive |
| rem | BlackBerry Encrypted File |
| rev | WinRAR Recovery Volume |
| rge | Microsoft Entourage Archive |
| rhi | Rhino3D Installer Package |
| rk | RK Compressed Archive |
