Blackboard course packages can only be exported or copied successfully when they are under 1GB, but hidden course files in the Content Collection often cause course packages to go over the 1GB limit. The Content Collection houses all files added or uploaded to a course, so the course files can become too large very quickly. This is especially true if course copies have been performed on the course or there have been multiple imported content packages. Course copies and imports often lead to duplicated and unnecessary files in the course Content Collection. The steps below show you how to clean up your course files in the Content Collection.