Dell XPS connection to Oppo 205

I've just bought a top of the range XPS 15 and wanted to stream Spotify (for starters) to my hifi via my Oppo 205.

I've searched high and low for straightforward instructions regarding the XPS output, the Oppo input and the Oppo settings. The Oppo already functions as the default CD player so that part works.

The manual is more optimistic than helpful. There are thousands of pages on Oppo players so finding specific instructions for the above is needle in haystack time. If anyone can point me towards a website/page I would be deeply grateful.

Thank you