Export of collection list with a button?

I’m looking for a way to add a button that exports the filtered results of a collection list. Best case scenario would be a CSV file. I can’t ask my client to convert JSON.

The Export feature in the CMS section of the Designer is great, but I need to add this functionality to the site itself. I also need it to only export the Items in the list.

Thanks!

Did you ever figure this out?