There is no ‘import’ feature in the Sonos software. 

If you can convert it into Sonos XML then my iOS app (see profile) will import it as a playlist.

Or if you convert it into an m3u file Sonos can import those from a file share.

Thanks for your reply, controlav, but I have no idea how to convert a OPML file to Sonos XML or m3u file. I’m afraid I need someone to walk me through this, step by step.

What is Stitcher’s recommendation to do with the OPML file? Normally I recommend Soundiiz.com to convert playlists between music systems but they don’t support Stitcher, they do support various file formats though:

Stitcher doesn’t make any recommendations, they don’t care, they’re going away. They just link to an export tool and that’s it. https://stitcher.helpshift.com/hc/en/1-stitcher/faq/979-how-can-i-take-the-shows-i-listen-to-on-stitcher-somewhere-else/

I would suggest reaching out to soundiiz and see if they can import the opml file, maybe send them a sample file too. I’m sure they would love to pick up some ex-Stitcher customers.