Applies to: Moodle 2.6, 2.8, and 3.0
The Moodle support team can bulk add users to a course site.
They can also bulk add guest accounts to the Moodle user database if need be. (If they haven’t already, your guests must first Create a Guest Account.)
Note: We encourage you to use the Manually Enroll a Student or Guest process unless you have a lot of people you need to enroll at once.