Posted by dellus on Oct 03, 2021; 10:25pm
URL: https://forum.librecad.org/Can-t-open-dxf-and-dxf-files-tp5721091p5721098.html

What happens when you make a new drawing with the new computer? Can this be opened again?
If yes you could then try to rename a copy of your old drawing to the name of a substitute  new drawing, which you already have reopened successfully. Just an experiment...