Standard Zip files can be opened within OSX simply by double clicking the file. Any other compression formats i strongly recommend Stuffit Expander, its opened pretty much everything ive ever thrown at it
Stuffit Expander used to come pre-installed on Macs. Since Tiger, I think, you have to download it yourself as it doesn't come on the Install/Restore disks anymore.
I like Zipeg because it shows you the content of a Zip file so that you can selectively unarchive a particular file. If only someone made a *reasonably priced* version of Winzip (StuffIt is way overpriced IMO).
Shop for your Apple, Mac, iPhone and other computer products on Amazon.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.