| pfc | Corel PercetFit Component |
| pfc | Pegasus Mail Messages Cache |
| pfco | Pipe Flow Expert Component Data |
| pfcolors | Pixelformer Colors Data |
| pfd | Alzex Personal Finance Data |
| pfd | Optima! 2.5 Document |
| pfe | Programmers File Editor Data |
| pfep | PronoFoot Expert Plus Data |
| pff | Adobe Photoshop Zoomify Image Stream |
| pfg | Altair FEKO Optimisation Information Data |
| pfg | Epson PIF Designer Frame |
| pfh | MarkNet N2601e Flash Data |
| pfi | Paragon Backup Index Data |
| pfl | Corel Paint Shop Pro Fine Leather Preset |
| pflog | Peregrine ServiceCenter Database Update Log |
| pfpm | Pipe Flow Expert Pump Data |
| pfs | Altair FEKO POSTFEKO Session 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 |
