| Abbreviation | Definition |
|---|---|
| PT3 | Template (PageMaker 3) |
| PT4 | PageMaker 4 Template |
| PT5 | Template (PageMaker 5) |
| PTB | PubTech BatchWorks script file |
| PTL | Rational Rose 98 Petal file |
| PTM | Music format |
| PTM | PubTech BatchWorks Macro file |
| PTM | Template (Page Magic 2.0) |
| PTN | Amaya Dicopar File |
| PTR | Cursor image file (OS/2 PTR file) |
| PTR | QMail Qwk reader pointer file |
| PTU | Performer Terrain Utilities |
| PTX | Bitmap graphics (Printronix graphics file) |
| PTX | E-Transcript PTX files |
| PTY | Rational Rose 98 Properties file |
| PUB | Page template (MS Publisher) |
| PUB | Public keyring (Pretty Good Privacy) |
| PUB | Publication (PageMaker - Ventura Publisher - 1st Publisher) |
| PUBKR | Public key ring (PGP) |
| PUT | PUT Compressed file archive |