The «Elevation» folder is where the free elevation databases are stored. You can backup the elevation files on your computer. You can also copy those files to other devices. The «Logbook.sql» is a SQLite3 database file where the content of Air Navigation's logbook is stored. It can be edited by any SQLite 3 editor. The «Navplans» folder is where saved routes are stored. You can backup and/or copy the files to other devices.