## Backup Tab Options

You can have Understand for C++ automatically create backup source files by checking the Create backup file when saving box in the Backup tab of the Options->Preferences dialog. By default this option is off and no backup files are created.

If you enable backup file creation, you can also set the following options:

- Only on first save after open - Check (the default) this box if you want the backup file created only the first time you save the file during an Understand for C++ session. If you remove this checkmark, the latest backup file will be overwritten each time you save the file in Understand for C++.
- Filename - Specify the file naming convention you want to use for the backup file. The default naming convention is $CurFileName.$CurFileExt.bak.
- Save location - You can choose to save the backup files in the same directory location as the source file or in a separate directory you specify.

Backup files are saved as simple text files. No formatting or information about changes made is saved with the file.

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