gbx to dwg conversion is almost certainly related to gerber CAD exports, but .gbx file often confuses users because the standard RS-274X uses .gbr by default and not many tools support the import of .gbx files.
Most Internet sources agree that .gbx is just a variant of .gbo file actually and not .gbr. In any case, gerber files are text files, and if the content is in a valid format, PCB tools can load it regardless of the actual file extension.
If your GBX file contains gerber data in standard format, you can simply load it to your PCB software and work with it like usual, for example exporting to DWG format.
Updated: January 19, 2024