Editing and deleting Numbers 5.2 template files
I'm wanting to delete some templates I not longer use AND I need to edit other templates that I need to keep.
I've tried many options to locate the template files I've created in Numbers without success (I DON'T have an iWork folder residing in the Application Support folder of the Library folder).
How do delete/trash templates that I want to get rid of?
Also, how do I edit and save changes in a template without having to create another template?
Any help would be greatly appriciated.
iMac 21.5″, macOS 10.15