| 1. | .pb | Fax (FAXability Plus) ◊ Phonebook (WinFax Pro) ◊ Proboard configuration files (Proboard) ◊ Setup file (PixBase) |
| 2. | .pb1 | Document (First Publisher for Windows) |
| 3. | .pba | Powerbasic BASIC language source code file (Genus) |
| 4. | .pbd | Dynamic link library (PowerBuilder) ◊ Phone book (FaxNOW! - Faxit) |
| 5. | .pbf | Turtle Beach Pinnacle Bank File |
| 6. | .pbi | Powerbasic include file (Genus) ◊ Profiler Binary Input (Microsoft Source Profiler) |
| 7. | .pbk | Phonebook |
| 8. | .pbl | Library (PowerBuilder) ◊ Powerbasic library (Genus) |
| 9. | .pbm | Planar bitmap graphics (XLib) ◊ Portable BitMap format (black and white) |
| 10. | .pbo | Profiler Binary Output (Microsoft Source Profiler) |
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