How to do a mass files deletion?

Hey, guys!

After taking multiple Learning Paths from Eduspace. I realized my Collaborative Space was filled with a bunch of junk and old Physical Produts and 3D Shapes that were imported from catalogs provided by the courses. I found having around 12 thousand items/objects that I am almost certain that half of it is just old files.

I am aware that the best way to delete content without dealing with "relation" warnings is to remember and search for the main products imported from the catalog and open them on Collaborative Lifecycle and use the Delete tool. However, in my situation, this is quite inpractical since there is so much content to delete.

Is there a way to delete all the content (including structural parts) imported from a catalog? Or am I doomed to deal with all this till the end?

 

Thank you in advance for any help provided!