Hello, I'm interested in speedruning teardown and I've practiced a little bit but there's one problem. When im ready to do a full run of the game I won't know how to do a reset. Theres nothing on the game menu to delete a save file and I've looked at guides and I cant find anything. So how do I reset teardown?

Also, is there a way I can keep my original save file so I can load up that file when I want to?

The getting over it auto splitter is not working because of the new update 1.599. Is it against the rules to downgrade to the version 1.59 so my auto splitter works?