| postal | TomTom Postal Code Database |
| postinst | Debian Package Post-installation Script |
| postrm | Debian Package Post-removal Script |
| pot | CASIA-OLHWDB 1.0 Page Data |
| pot | FractInt Continuous Potential Bitmap |
| potmenx | Egis Encrypted Powerpoint POTM Template |
| pov-state | POV-Ray State File |
| pow | WAsP Power Curve |
| poz | Poser 1.0 Scene |
| pp | Topocad Polygon Point Coordinate Data |
| pp2 | PingPlotter Exported Data |
| pp2 | Poser Props Data |
| pp3 | PlanetPress Suite Form Data |
| pp3 | RawTherapee Sidecar File |
| ppass | ParaPass Keystore |
| ppd | Polar ProTrainer Person Data |
| ppd | ProfiCAD Symbol Data |
| ppf | EdgeCAM Pathtrace Part Data |
| ppf | Micrografx Picture Publisher Image |
| ppf | PPF-O-Matic Patch |
| pphe | PLINK Phenotype Permutations Data |
| ppi | Lifo-Pro Producer Price Index |
| ppk | PuTTY Private Key |
| ppk | Sunnysoft InterWrite Keyboard Definition Data |
| ppl | PTC Creo Route Sheet Data |
| pplx | Osmose O-Calc Pro Database |
| pplz | Polar ProTrainer Training Plan |
| ppm | Insight II Proton Chemical Shifts Data |
| ppmd | ExtractNow PPMD Data |
| ppmx | Scorelib Paged Parameter MatriX Data |
| ppp9 | Microsoft PowerPoint for Mac Wizard |
| ppronote | PowerPro Note Data |
| pprot | NxSeq Long Mate Pair Library Kit Saved Parameters |
| ppsenx | Egis Encrypted Powerpoint PPS Document |
| ppsmenx | Egis Encrypted Powerpoint PPSM Slideshow |
