Hi, Matt S Rinc here.
I'm an Udemy instructor and have access to an their API. But this bid is only for exported data in CSV for all free courses as your data requirements and only for Udemy.
Let me know if this is OK for you. The other option is to create you an (existing) browser plugin script that you can run later yourself but I have to check regarding data you need (email id most likely not extractable either way - not even with an API).
Best Regards,
Matt