| filename extensions | art-335 |
| hbk | |
| TechTarget file types | art-336 | HBK-Accounting-data-file-Humanic-Software |
| TechTarget file types | art-336 | HBK-Handbook-MathCad |
| English | eng-000 | Accounting data file |
| English | eng-000 | Handbook |
| English | eng-000 | Mathcad Handbook File |