Hi there, @carrol_quadrio ...
I don't believe there are any reports you can download that will automatically separate out your students by group. However, you could download a listing of your students either in the Gradebook or via New Analytics. Here are a couple Guides for you to look through:
I hope this will be of some help to you. Sing out if you have any other questions...thanks! Take care...be well.
@carrol_quadrio, if you are the teacher of a course in the current term (or between its start and end dates in Settings, if those are governing availability), then yes, there is a report of group members available within your group tab under People. Depending on permissions at your institution, designers, TAs and certain admins can also use this.
The steps are in the group import instructions: