| 1. | .pub | Page template (Microsoft Publisher) ◊ Public keyring (Pretty Good Privacy) ◊ Publication (PageMaker - Ventura Publisher - 1st Publisher) |
| 2. | .pubkr | Public key ring (Pretty Good Privacy) |
| 3. | .pud | Map file (WarCraft II) |
| 4. | .put | Compressed file archive (PUT) ◊ Graphics (WScan) |
| 5. | .puz | Crossword ◊ Puzzle file (BrainsBreaker Puzzle) |
| 6. | .puzz | Bitmap graphics (8bit) (X11 Puzzle) |
| 7. | .puzzle | Bitmap graphics (8bit) (X11 Puzzle) |