| filename extensions | art-335 |
| prt | |
| TechTarget file types | art-336 | PRT-A-print-formatted-file |
| TechTarget file types | art-336 | PRT-Part-file-CADkey |
| TechTarget file types | art-336 | PRT-Part-file-Pro-Engineer |
| TechTarget file types | art-336 | PRT-Printer-driver-Dr-Halo |
| TechTarget file types | art-336 | PRT-Unigraphics-CAD-file |
| English | eng-000 | A print-formatted file |
| English | eng-000 | Part file |
| English | eng-000 | Printer driver |
| English | eng-000 | Pro/ENGINEER Part File |
| English | eng-000 | Unigraphics CAD file |