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Configuration > Data safety

To improve the security of data, stored in a project file, you can select Create file backup. Selection makes when you open the file, create a copy of it. A copy is saved in the same directory as the opened file. Name the backup file is created with the name of the file to open and an additional extension .BAK.
Backup file is created if it does not exist or an existing copy of the file being opened is older than 1 day.

Additionally, you can activate auto-save the currently open file. To do this you should enter the time in minutes, after which the program is to save the data to a file. If the current project has not yet been saved and no file name given to the program saves it to file "document.~kr", located in the folder with the Drafter.
Time equal to zero minutes turn off auto-save feature.