Create Exportable tListSQL

I keep getting more and more requests from teachers to get csv files so that they can import their class lists into some application they are working on.

I know how to do a tlistsql page, but I do not know how to make something that could be exportable. I would like a button that the teacher can click on, it will run a query in the background and when the data is ready, they save a csv file somewhere and they can use that for whatever they need.

How do I make a sql query exportable in PowerSchool?