Archive for May 20th, 2014

by Tom Nelson

You probably do it at least once a week. Sometimes you may not even be aware you’re doing it; other times you do it because you need to.


Screen shot © Coyote Moon, Inc.

We are of course talking about expanding or compressing files on your Mac. If you download files, including apps off the Internet, they’re likely to be sent as compressed files, possibly in zip or dmg format. Your Mac probably automatically expands such files; you may also manually expand them yourself. It all depends on whether you configured your web browser to automatically save and expand downloads.

But it isn’t the browser doing the work of expanding files, and the Finder can’t unzip or zip files, although it pretends it can. Instead, your Mac uses the Archive Utility, a core services app that Apple hides within the Mac’s system folder, to compress or decompress files.

Read more on About: Macs.


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