Looking for assistance to restore a backup.

I have a home Ubunto Server 20,04 running a snap Nextcloud ver 22.2.3. My NC use is basically just to store my music, photos, and a few documents. I completed a full nextcloud.export about one month ago. I have lost most of my music and would like to restore it from my backup. Is there a way to run nextcloud.import but only restore the music directory or is it all or nothing?

If it is possible I would appreciate some directions/commands to run. I am quite new to both Linux and Nextcloud so the help is appreciated.