Hi gerarduran85,

Do you have any assignments created in the class yet? The CSV download only shows student assignment scores for the assignments that you created---it does not show any student account info, mastery progress, or site activity.

You can find more information on the CSV report here: https://support.khanacademy.org/hc/en-us/articles/6448420401677-How-do-I-download-my-students-assignments-data-

I hope this helps!