| pfl | Corel Paint Shop Pro Fine Leather Preset |
| pfl | Printfil License Data |
| pflog | Peregrine ServiceCenter Database Update Log |
| pfpm | Pipe Flow Expert Pump Data |
| pfs | Altair FEKO POSTFEKO Session Data |
| pfs | First Publisher ART Data |
| pfsb | ParFlow Scattered Binary Data |
| pfsol | ParFlow Solid Data |
| pfx | PKCS #12 Data File |
| pg | eSignal Page Data |
| pg | STK Propagator File |
| pg2 | ProGen 2 Protocol Data |
| pg3 | Personal Guitarist Song |
| pg5 | FlexPDE Plots Data |
| pga | PowerGREP Action Definition |
| pgal | Photo 3D Album Gallery Data |
| pgbk | SoftTouch POS Database Backup |
| pgc | PGN Game Coding |
| pgdata | Penguin George URL Melter Data |
| pgdb | PathVisio Gene Database |
| pgex | PathVisio Expression Dataset |
| pgf | PATCHMASTER Pulse Generator File |
| pgf | PowerGREP File Selection Data |
| pgi | GAUSS Engine PGRAPH Library |
| pgl | PowerGREP Library |
| pgm | Chromeleon Program |
| pgmf | Tacx VR Trainer Program File |
| pgn | Portable Game Notation Data |
| pgo | Papagayo Data |
| pgo | QlikView Server Persistent Group Object |
