To prevent overwriting of your local backup files, you can add a timestamp (the day and time of the backup) to the backup filename. The filename will look like this: Company Filename (Backup Dec1,2006 12 00 AM).qbb.
To do this task
Go to the File menu and click Create Backup to open the backup wizard.
Click the Options button.
Click the checkbox to add the date and time to the filename.
Back up company files overview