Well we don’t know anything about what may or may not be in said “files” and computers. There may or may not be anything bad.... although once leaks start there can always be something “embarrassing” even if nothing illegal. And, of course, Mueller & co. want to set and spring perjury traps on everyone, where if you state even the most innocuous detail incorrectly (compared to something in an email, document, etc.) they will charge perjury.
“Well we don’t know anything about what may or may not be in said “files” and computers.”
Yet.
Possibly, false docs have already been prepared to insert in the files once they’re in FBI’s possession.