I attempted on my personal computer to create a Multisite under MAMP. Unfortuately I had a number of other MySQL WordPress databases on the site and thus attempted to change those to work with the Multisite. The result is a complete and total mess. WordPress cannot find my themes, my plug-ins, or anything else. Thus I decided the best thing to do would be to remove WordPress and start over from the beginning.
So under Support I obtained the file "Delete Site". The problem is that the "Delete Site" under tools does not work. I expect it does not work as I ended up changing the passwords in the MySQL databases - there are at least 5 of them - all of which I need to delete also - so that I no long have - or know the Administrator password.
Thus the question - how do I delete all of the WordPress files - including the MySQL files so that I can start over from scratch? Thank you.