The drawing file type to open in the dialogue box shows DataCAD 11 - 19 instead of 11 - 20:
DataCAD user since v4!
Regards
Mark Bell
Principal
ATELIER MARK BELL
Australia
https://www.ateliermarkbell.com
Regards
Mark Bell
Principal
ATELIER MARK BELL
Australia
https://www.ateliermarkbell.com