How to restore from backup files? Steven Chan September 10, 2015 10:56 Updated Follow Backup files are zip files containing your documents. You can import backup files directly from the library by tapping +. Related articles All my documents are missing. How to transfer GoodNotes data to a new device? How should I backup my documents? How to save a backup file in my computer using iTunes, and restore it later? The files are zipped and I cannot view them on my desktop.