Can I undo a course import? I imported quizzes and not my existing content has been overridden.
Welcome to the Canvas Community!
Unfortunately, there is not an undo for course imports. You should have access to the beta and test versions of your canvas instance:
You might be able to retrieve an older version of the course from there and reset and restore the export file but I would highly recommend getting your Canvas Support group or Canvas Admin involved.
Retrieving data ...