Time Machine - Not enough space (hidden items)
So i was cleaning out my old time machine external to make room for a new back up and I forgot that mac has invisible items, which i ended up not deleting. Long story short i dont have enough space because the hidden files are taking up space.
PROBLEM: Normally I'd just reformat the thing, but I have 418GB or so of data that is on there that i dont want erased. ALSO id go ahead and finder>showinvisible and just delete all the files that pull up on my external, but how do i seperate what is part of the folders I want to keep and what isnt?
Screen cap to show my problem.
1 TB external
400 GB 1 folder
2 GB 1 Folder
18 GB 1 folder
67 GB Left = Not enough room?