| Extension | File Description |
| .ADT | CAD Files |
| .AFS | CAD Files |
| .ARD | CAD Files |
| .ATT | CAD Files |
| .BDC | CAD Files |
| .BDL | CAD Files |
| .BIT | CAD Files |
| .BLK | CAD Files |
| .CAD | CAD Files |
| .CAM | CAD Files |
| .CATPART | CAD Files |
| .CATPRODUCT | CAD Files |
| .CEL | CAD Files |
| .CKD | CAD Files |
| .CNC | CAD Files |
| .CPA | CAD Files |
| .CRV | CAD Files |
| .DBQ | CAD Files |
| .DC | CAD Files |
| .DC1 | CAD Files |
| .DC2 | CAD Files |
| .DC3 | CAD Files |
| .DCD | CAD Files |
| .DC~ | CAD Files |
| .DES | CAD Files |
| .DFT | CAD Files |
| .DFX | CAD Files |
| .DGK | CAD Files |
| .DGN | CAD Files |
| .DLV | CAD Files |
| .DLX | CAD Files |
| .DRA | CAD Files |
| .DRG | CAD Files |
| .DSG | CAD Files |
| .DST | CAD Files |
| .DWG | CAD Files |
| .DWS | CAD Files |
| .DWT | CAD Files |
| .DXE | CAD Files |
| .DXF | CAD Files |
| .DXX | CAD Files |
| .EASM | CAD Files |
| .EDN | CAD Files |
| .EDRW | CAD Files |
| .EQN | CAD Files |
| .EZC | CAD Files |
| .EZP | CAD Files |
| .FAN | CAD Files |
| .FCW | CAD Files |
| .FLX | CAD Files |
| .FMZ | CAD Files |
| .FNC | CAD Files |
| .FPD | CAD Files |
| .FZ | CAD Files |
| .G | CAD Files |
| .GDL | CAD Files |
| .GDS | CAD Files |
| .GTW | CAD Files |
| .GXC | CAD Files |
| .GXD | CAD Files |
| .GXM | CAD Files |
| .HCP | CAD Files |
| .HSF | CAD Files |
| .HUS | CAD Files |
| .IAM | CAD Files |
| .IDE | CAD Files |
| .IDV | CAD Files |
| Extension | File Description |
| .IDW | CAD Files |
| .IGS | CAD Files |
| .IPJ | CAD Files |
| .IPN | CAD Files |
| .IPT | CAD Files |
| .JAM | CAD Files |
| .JBC | CAD Files |
| .JOB | CAD Files |
| .JT | CAD Files |
| .JVSG | CAD Files |
| .KIT | CAD Files |
| .KTZ | CAD Files |
| .LCF | CAD Files |
| .LDR | CAD Files |
| .LIN | CAD Files |
| .MC9 | CAD Files |
| .MCX | CAD Files |
| .MODEL | CAD Files |
| .MS9 | CAD Files |
| .MVS | CAD Files |
| .NC | CAD Files |
| .NEU | CAD Files |
| .NGD | CAD Files |
| .NPL | CAD Files |
| .NWC | CAD Files |
| .NWD | CAD Files |
| .NWF | CAD Files |
| .OLB | CAD Files |
| .OPJ | CAD Files |
| .PCS | CAD Files |
| .PIPE | CAD Files |
| .PM3 | CAD Files |
| .PRT | CAD Files |
| .PSS | CAD Files |
| .PSV | CAD Files |
| .PWD | CAD Files |
| .RED | CAD Files |
| .RIG | CAD Files |
| .RML | CAD Files |
| .RRA | CAD Files |
| .SAB | CAD Files |
| .SAT | CAD Files |
| .SBP | CAD Files |
| .SDG | CAD Files |
| .SEW | CAD Files |
| .SKF | CAD Files |
| .SLDASM | CAD Files |
| .SLDDRW | CAD Files |
| .SLDPRT | CAD Files |
| .T3001 | CAD Files |
| .TBP | CAD Files |
| .TC3 | CAD Files |
| .TCD | CAD Files |
| .TCM | CAD Files |
| .TCT | CAD Files |
| .TCW | CAD Files |
| .TSF | CAD Files |
| .UNT | CAD Files |
| .VET | CAD Files |
| .VND | CAD Files |
| .VTF | CAD Files |
| .WDP | CAD Files |
| .XISE | CAD Files |
| .XYB | CAD Files |
| .X_B | CAD Files |
| .X_T | CAD Files |
