From OCAD Wiki - English
To create a backup of the currently opened file:
- Choose the Create Backup command in the File menu.
- The Backup dialog appears.
- OCAD creates a new folder called Backup and suggests a name for the backup file, which consists of the current date and time and the file name. Alternatively, you can enter an own name.
- Click the Save button to save the backup.
This function has not the same effect as the Save As function. After saving the backup you are still working on the old file.