How to create an anonymous survey as a course evaluation among the participants?

I added a survey to my course so that the course participants can evaluate the course quality. But, I realized that it is not anonymous. I can see in the results csv file the answers of every participant including their names. Is there a way to make it anonymous?
Thanks and best regards,

Unfortunately the survey xblock will not allow you to set the survey as fully anonymous.

If this is a hard requirement, you can resort to using an external survey /web form data collection tool such as google forms.
I hope this helps

Thank you very much for your response!