Backing up is the process of copying data to an external location for safekeeping. Unlike syncing, backed-up data remains unchanged unless actively modified or deleted by the user.
How to Back Up Your .nebo Files
Export your .nebo files to an external location, such as your device’s hard drive or a memory stick, for safekeeping.
For more details, visit: Back Up Your Notes.
It is always advisable that you regularly back up your .nebo files to protect yourself from data loss just in case the unexpected ever happens.