| pai | PocketAI Data File |
| paltalk | Paltalk Data |
| pamp | Poweramp Album Thumbnail |
| pan | Panorama Database File |
| panic | Mac OS X Kernel Panic Data |
| 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 |
| path | DROPS Simulator Survey Data |
| pattern | PhotoLine 4 Pattern Data |
| paux | plasTeX Data |
| pav | MediaMatrix Peavey Architectural View 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 |
| pcap | Libpcap Captured Packets |
| pcapng | PCAP Next Generation Dump Data |
| pcast | iTunes Podcast File |