| filename extensions | art-335 |
| ohp | |
| TechTarget file types | art-336 | OHP-DOS-7-File |
| TechTarget file types | art-336 | OHP-Dos7-file |
| TechTarget file types | art-336 | OHP-OpenHelp-project-file |
| English | eng-000 | DOS 7 File |
| English | eng-000 | Dos7 file |
| English | eng-000 | OpenHelp project file |