| Extension Name | Extension Type | Category | Dev.Company | File Format |
|---|---|---|---|---|
| .CGR File Extension | Quest3D Channel Group File | Settings | Act-3D | Binary |
| .IGR File Extension | Quest3D Channel Group Layout File | Settings | Act-3D | Binary |
| .QPF File Extension | Quest3D Project | Data | Act-3D | Unknown |
| .Q3D File Extension | Quest3D Project File | Data | Act-3D | Binary |