Questions about Sims 2 Files

I got the sims 2 yesterday and it works, but I have  questions about file management. What files from the different folders can you delete? I made a custom world and I noticed alot of N004 files while saving. I counted and its 691 N004_user.package files and 155 N004_lot.package files. Some of these are in the recycle bin and I know onedrive can mark stuff for deletion and it can cause a problem, but i didn't want a bunch of files on my laptop locally. 

I have sims 4 on here as well but that only took up about 1.5 GB and that's with deleting old saves, local thumbnails, and scratch constantly. If I don't delete anything  from the Sims 2 files will it just replace files as it goes on and not take up anymore space than it has or will it really fill the 5 GB to the brim.