Hello Cecil! Welcome to TP ha 
1 Like
Yes mate! Big ups 
Not sure if its the same as with music files but I have a lot of PDFs on my MacBook for work, I also have an idiosyncratic workflow that means I often end up with multiple versions of the same PDF but I’ve been using an app called CCleaner that’s free to find duplicates.
Not sure if it’s the same and whether it will help but searching through the duplicates is an excellent excuse not to do any actual work 
I still have iTunes. Love it, Approx 100,000 tunes on there, and hundreds of playlists. So scared of transferring it to apple music but know i will have to one day. Is apple music as good as itunes. For personal files, i dont want the streaming subscription, i have Spotify for that, just so i can keep my own files separate.