| 241. | .pt5 | Template (PageMaker 5) |
| 242. | .ptb | Script (PubTech BatchWorks) ◊ Table file (Pro/Engineer) |
| 243. | .ptd | Table file (Pro/ENGINEER) |
| 244. | .pti | Graphics (PTI-Plugin) |
| 245. | .ptif | Bitmap graphics (Pyramid encoded TIFF) |
| 246. | .ptl | Petal (Rational Rose 98) ◊ Petal file (ASCII version of Microsoft Visual Modeler) |
| 247. | .ptm | Macro (PubTech BatchWorks) ◊ Music format (Polytracker) ◊ Template (Page Magic 2.0) |
| 248. | .ptr | Cursor image file (OS/2 PTR file) ◊ Qwk reader pointer file (QMail) |
| 249. | .ptu | Performer Terrain Utilities |
| 250. | .ptx | Bitmap graphics (Printronix graphics file) |
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