Allume StuffIt Expander doesn't come with Mac OS X 10.4 or later.
However, Mac OS X 10.4 and Mac OS X 10.5 Leopard or later let you compress and decompress archive (.zip) files that work with both Mac OS X and Microsoft Windows.
If you'd like to use StuffIt Expander too, for example, to open .sit or .sitx compressed files, you can download it from the Allume Systems website.
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Related Terms: Aladdin, unzip, unstuff, stuffed