If your project is corrupted, you can take the following actions.
When you successfully open a project file, Minitab automatically creates a backup file in the same folder as the original .MPJ file. The backup file has a .BAK extension. For example, if the project file is DEFECTS.MPJ, then the backup file is DEFECT.MPJ.BAK. The backup file contains the contents of the project as they were when you last opened the project successfully.
If you believe your project may be corrupted, try to save the project and send a copy of the .MPJ and .BAK files to Minitab Technical Support. We might be able to recover some or all of the project's contents.
If you are not able to retrieve a backup copy, you can try to recover individual worksheets and graphs.
You can select multiple worksheets or graphs by pressing the Ctrl key as you select them.
After you recover a corrupted project file, update the project to prevent it from becoming corrupted again.
To quickly recreate a control chart or a graph that was created from the Graph menu: