| plj | Plus 2D Job Data |
| plk | COREX Part-of-speech Tag Data |
| plk | Password Safe Lock File |
| plma | Protomata-Learner PLMA Data |
| plmn | GSM Public Land Mobile Network Data |
| plmx | PDXpert PLM XML Data |
| plmxml | Siemens PLM XML Data |
| plo | Radio Toolbox Playlist |
| plot | Matplotlib Plot |
| plq | TAK 2000 Heat Rate Plot |
| plr | Mail.dat Package Label File |
| pls | Spike2 Output Sequencer Views Data |
| plsc | Messenger Plus! Live Script |
| plsk | Messenger Plus! Live Skin Pack |
| plt | MODTRAN Spectral Output File |
| plt | PTC Creo Plot Data |
| plt | Tecplot 360 Binary Plot Data |
| plt0 | Nintendo Wii Palette Data |
| pltn | Appearance Manager Platinum Theme Data |
| plu | AquaCrop Rainfall Data |
| plu | Portable License Utility Data |
| plu | SensoSCAN 5 Saved Measurements Data |
| plu250 | Portable License Utility Data |
| plux | SensoSCAN 6 Saved Measurements Data |
| plv | XPowder RAW Data |
| plw | PicoLog Data |
| ply | Polygon Model |
| ply | Scanalyze Triangle-mesh Data |
| pm | Pegasus Mail Frequently Used Data |
| pm! | Pegasus Mail Address Book |
| pm$ | Pegasus Mail Temporary Data |
| pm1 | Pegasus Mail Folder Secondary Index |
| pm2 | Pegasus Mail UID Information |
| pm3 | Pegasus Mail 3 Data |
| pm4 | Pegasus Mail General Filtering Rules Data |
