How do you add/update/remove a single file from an existing zip or rar (or any compressed) file on a mac? In Windows, you have the Winzip/Winrar app which simply shows the contents of the file in an interface that you can drag files into and out of. I can't for the life of me find a similar app for Mac. All of the apps I found simply uncompresses the entire zip file with no interface whatsoever. My problem essentially is that I'm changing files inside of a compressed file but it uses a specific format so I don't know how to recreate the compressed file. I can open and uncompress the file perfectly so normally on Windows, I can extract single files, change them and add them back with no problems.