| p7s | PKCS #7 Digital Signature |
| p7x | Windows SDK Packed Digital Signature |
| p7z | PKCS #7 Compressed Message |
| p8 | PICO-8 Data |
| p83 | GAEB DA 2000 Data File |
| p99 | MicroStation Modification Project Resource File |
| pab | Microsoft Outlook Personal Address Book |
| pad | Portable Application Description |
| pafsc | Esko LinkEdge Package |
| pai | PocketAI Data File |
| pamp | Poweramp Album Thumbnail |
| pan | Panorama Database File |
| pao | Xilinx Peripheral Analyze Order File |
| pap | Corel Painter Paper Texture |
| papers | Corel Painter Paper Texture |
| par | Mail.dat Postage Adjustment File |
| param | CASTEP Parameters Data |
| parca | RealityCharting Packaged Chart |
| part2 | NetObjects Fusion Internal System Data |
| part3 | NetObjects Fusion Internal System Data |
| part4 | NetObjects Fusion Internal System Data |
| part5 | NetObjects Fusion Internal System Data |
| pass | Xcode Wallet Data |
| paw | Pawaa File |
| pay | z-Tree Payment File |
| paz | Project A.R.S.E Brain Data |
| pb1 | UltraEdit Popup Data |
| pbf | Picasa Button File |
| pbin | polarization NAVIGATOR Binary Data |
| pbn | Portable Bridge Notation Database |
| pbo | Samsung A900 Phone Book Object |
| pbp | Sony PSP Firmware Update Image |
| pbq | PunkBuster Query Script |
| pbz | Picasa Button Zipfile |
| pc5 | RSLogix 5 Internal Data |
