As a developer I tend to use virtual machines a lot. After a couple off terrible failures, I tend to make backups every once in a while. Store a working copy on my NAS and copy that one, if needed on multiple devices. (Mac / Windows / Ubuntu … Computer or laptop)
But unzipping was a problem on my iMac. These things tend to grow and end up in a 10GB file.
The answer was simple: download Unarchiver and make this the default app. That makes me a happy Apple user once again!