To save time enrolling Enroll Multiple Courses to One or Multiple Users
Please go to Enrol Courses
Tick the boxes of these courses you wish to enroll to the users then click Enroll Multiple Courses.
Change the Show "10" Entries to Show all, then tick the Select All box then click Enroll All.
You will then need to confirm the action.
Once this has been done you can go to User Reports to check it has worked.
I hope this helps!