| 1. | .ac$ | Spooled plot file (AutoCAD AutoSpool) |
| 2. | .ac0 | AC/frequence domain output (Spice) |
| 3. | .ac1 | AC/frequence domain output (Spice) |
| 4. | .ac2 | AC/frequence domain output (Spice) |
| 5. | .ac3 | AC/frequence domain output (Spice) |
| 6. | .ac4 | AC/frequence domain output (Spice) |
| 7. | .ac5 | AC/frequence domain output (Spice) |
| 8. | .ac6 | AC/frequence domain output (Spice) |
| 9. | .ac7 | AC/frequence domain output (Spice) |
| 10. | .ac8 | AC/frequence domain output (Spice) |