AutoCAD 2008 User's Guide > Start, Organize, and Save a Drawing > Repair, Restore, or Recover Drawing Files > Repair a Damaged Drawing File > 
Repair a Damaged Drawing File
Concept Procedure Quick Reference
 
 
 

To restore a drawing from a backup file

  1. In Windows Explorer, locate the backup file identified by the .bak file extension.
  2. Right-click the backup file. Click Rename.
  3. Type a new name using the .dwg file extension.
  4. Open the file as you would open any other drawing file.