| plmn | GSM Public Land Mobile Network Data |
| plmxml | Siemens PLM XML Data |
| plo | Radio Toolbox Playlist |
| plr | Mail.dat Package Label File |
| plsc | Messenger Plus! Live Script |
| plsk | Messenger Plus! Live Skin Pack |
| plt | MODTRAN Spectral Output File |
| plu | SensoSCAN 5 Saved Measurements Data |
| plu | Portable License Utility Data |
| plux | SensoSCAN 6 Saved Measurements Data |
| plw | PicoLog Data |
| ply | Polygon Model |
| ply | Scanalyze Triangle-mesh Data |
| pm$ | Pegasus Mail Temporary Data |
| pm2 | Pegasus Mail UID Information |
| pm5 | SmartCAM Process Model File |
| pm7 | Pegasus Mail Folder State |
| pma | Windows NT Performance Monitor Alert File |
| pmb | Payroll Mate Backup |
| pmb | Plazmic Media Engine Bundled Data |
| pmc | Windows NT Performance Monitor Chart |
| pmd | Poser Morph Target |
| pmd | Payroll Mate Database File |
| pmd | MikuMikuDance PolyMo Model Data |
| pmdl | Snowboy Personal Model Data |
| pme | Plazmic Media Engine Data |
| pmh | Pegasus Mail Phonemic Homonym Dictionary |
| pmi | Pegasus Mail Folder Index |
| pmj | 3D Scanner Output |
| pmjx | 3D Scanner Output |
