What would happen if Spotify went out of business / lost all music?

Hey everyone - not sure if this is irrational (hopefully it is), but I always fear the idea that Spotify will either go out of business or somehow lose all my saved music. I have thousands of songs saved from all kinds of different artists, genres, and time periods, and really don't know what I would do if it all suddenly disappeared. Does anyone else think of this possibility? Am I worrying for no reason?

Is there any way to export a list of all saved songs onto an excel sheet or something to at least have the names of all the songs we own in case something did happen?