How do we delete Learning Objects (Courses and associated Offerings and Classes)

Hello,

Does anyone know how to delete Learning Objects (Courses and associated Offerings and Classes) ?

Our users have uploaded content and it is not working, and it has to be re-uploaded from scratch. We would like to delete the existing content some of which has already been played.
We are not able to delete, only end date the Class, Offering and Learning Object Courses, so that they are not visible to the Learners, but the Administrators are complaining that it’s a big job to end date everything and rename the Learning Objects.

I would appreciate any advice

Thanks
Debbie