| filename extensions | art-335 |
| hhc | |
| TechTarget file types | art-336 | HHC-HTML-Help-Table-of-Contents |
| TechTarget file types | art-336 | HHC-HTML-Help-Table-of-Contents-Microsoft-Corporation |
| TechTarget file types | art-336 | HHC-Microsoft-HTML-Help-Contents |
| TechTarget file types | art-336 | HHC-TurboTax-Contents-File |
| English | eng-000 | HTML Help Table of Contents |
| English | eng-000 | Microsoft HTML Help Contents |
| English | eng-000 | TurboTax Contents File |