| filename extensions | art-335 |
| xmx | |
| TechTarget file types | art-336 | XMX-AutoCAD-External-Message-Compiled-File-Autodesk-Inc |
| TechTarget file types | art-336 | XMX-Character-Set-File |
| English | eng-000 | AutoCAD External Message Compiled File |
| English | eng-000 | Character Set File |