Where do the backed up files go?

Not using the product that often, I used CCleaner to clean up 3 registry items and 2 items (DLL links missing ...something to this effect). I am having problems with an application and would like to restore these items that I deleted. I backed them up to a file before deleting but where can I find the backed up files so I can restore them? Thanks for your ideas.

Unless you said otherwise they should be in your documents folder.

https://www.ccleaner.com/docs/ccleaner/troubleshooting/problems-after-you-have-run-ccleaner