And you will have both the original Zip file and the extracted folder, so there is no reason to keep that zip file to increase the device memory. By default, when downloading a ZIP file and opening it, the Mac will extract the contents in the same location as the compressed file. However, one of the easiest and easiest ways to keep your computer 'tidy' is to automatically delete the zip files after you've extracted them. You can use powerful software like Clean My Mac, or take advantage of Apple's existing features to keep your hard drive neat. There are many ways to reduce clutter and keep your Mac neat.