| 1. | .x | Archive (X1) ◊ Bitmap graphics (24bit AVS X image file) ◊ Lex language source code file ◊ Self-extracting archive (Alysis SuperDisk) ◊ X-file animation (Direct3D) (DeepV2) |
| 2. | .x01 | Secondary index (Paradox) |
| 3. | .x02 | Secondary index (Paradox) |
| 4. | .x03 | Secondary index (Paradox) |
| 5. | .x04 | Secondary index (Paradox) |
| 6. | .x05 | Secondary index (Paradox) |
| 7. | .x06 | Secondary index (Paradox) |
| 8. | .x07 | Secondary index (Paradox) |
| 9. | .x08 | Secondary index (Paradox) |
| 10. | .x09 | Secondary index (Paradox) |