| pos | BrainVoyager QX Slice Positioning Data |
| pos | Corel Paint Shop Pro Polished Stone Preset |
| pos | Lotus Notes POS Format Data |
| pos | NimbleGen Positions Data |
| pos | Orgadata LogiKal POS Data |
| pos | STK Position File |
| posb | Poseidon SE7EN Dive Log |
| posd | VivaPosterize Template |
| post | Yahoo! Messenger Post Data |
| 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 |
| potxenx | Egis Encrypted POTX Document |
| pov-state | POV-Ray State File |
| pow | PowerCFG Power Plan Settings Data |
| pow | WAsP Power Curve |
| power | Power GOO Picture Library |
| powerproclip | PowerPro Clipboard Data |
| poz | Poser 1.0 Scene |
| pp | Topocad Polygon Point Coordinate Data |
| pp2 | PingPlotter Exported Data |
| pp2 | Poser Props Data |
| pp2 | RawTherapee Sidecar File |
| pp3 | PlanetPress Suite Form Data |
| pp3 | RawTherapee Sidecar File |
| pp3nscale | PlanetPress Suite NScale Data |
| ppamenx | Egis Encrypted PPAM Add-in |
| ppass | ParaPass Keystore |
| ppb | Corel WordPerfect Print Preview Buttonbar Data |
| ppc | Roxio Easy CD Creator Data |
| ppc | XMap Flight Plan Statistic Data |
| ppd | Polar ProTrainer Person Data |
