What are all these files on my Mac? I just did a clean install of the latest Catalina on my Mac. I was searching for my documents folder and all these files appear? What are they? can I delete it? is it possible is malware?
You're in a search screen and it's currently listing all of the files on "This Mac" (your Mac).  It's literally (not figuratively) every single one of your files listed alphabetically in a search window; it's nothing harmful.



Just close out of the search and you'll be fine.  You might want to take a quick read of the Apple document, Get to know the Finder on your Mac.