Answer: To convert .bak file to .dwg file, you can simply change the extension .bak to .dwg, or use ZWCAD+ Drawing Recovery Manager to recover .bak files automatically.
Similar threads on CAD forum:
How to convert ZWCAD .bak (backup)file to .dwg?What is DWG format? What program open.DWG file?
What is .bak file? ZWCAD saves thatfor what?
