Risk Detective requires Microsoft Excel. Several versions of Risk Detective are available in order to match the differences between versions of Excel. Functionality is 99% identical between these Risk Detective versions.
| Excel | Risk Detective Version |
| Windows version 5 | 2.10 |
| Windows version 7 | 2.10 |
| Windows Office 97 | 2.20 |
| Windows Office 2000 | 2.20 |
| Windows Office XP | 2.20 |
| Macintosh version 5 | 2.10 |
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