You can only restore backup files with the file type (extension). ACC for Accounting, STK for Inventory, and. PAY for Payroll. If you changed the file type, before you restore, you will need to rename the file to the appropriate file type.
To restore the current year company database:
Go to File, Backup & Restore, Restore.
Select Drive and then the backup file.
Click Restore.
Enter Password, UBS, or your login password.
Restore complete.
See also How to update to the current database with previous year data
In case you want to restore the auto backup, please refer to the guide: 'How to Restore Auto Backup .'