I already have a list created and am having success with enrollment. I've just been given a new list with additional names that I need to incorporate.There are roughly 200 more names and I don't want to individually enter. Is this possible?

Please use the template that we provide on the Manage Classmates > Upload Classmates > Download Template. As long as you do not repeat any of the already entered members, this will work great. Any repeated members will display as duplicates.