If you have issues, you cannot contact the vendor for assistance.

If you need to convert and edit the files, open-source software is the best route.

If you need to view, edit, and convert files locally without restrictions, consider free CAD packages.

Supports active AutoCAD formats from early versions up to the latest releases.

Similarly, AutoDWG offers a trial version that supports batch conversion and version updates for AutoCAD files from R12 to 2026.