1. Open the drawing with AuToCAD and save it as a file in. Dxf format, and then close CAD. Note: it must be closed!
2. Reopen AuToCAD, and then open the file in. Dxf format, saved as. Dwg format (restored to CAD file), and then print it out and get rid of it!
3. If AuToCAD opens a file in. Dxf format just now, and the command prompt is invalid. I suggest you open it with a higher version of AuToCAD and save it to a lower version (generally save it to version 20 14).