The default location for the backup data file when using Schlage Express 4.4.0+ has changed a little bit based on user permissions.
Sometimes it is in the default location & backup files as it has been with previous versions of SMS Express ( C:\Schlage Express\$FACILITYNAME$.LLD).
If not there are a couple of additional steps that need to be taken to find it.
You will need to go to the Control Panel then click on Folder Options. In the Folder Options window click on the View tab and make sure that "Show hidden files, folders, and drives" is selected.
Once you have changed the option so that you can view all of the hidden folders you will need to navigate to this location and backup file: C:\Users\$USERNAME$\AppData\Local\VirtualStore\Program Files\Schlage\Schlage Express\$FACILITYNAME$.LLD
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