Mac OS X Lion includes a built-in command that allows you to compress and archive files in .zip format, which can also be opened on Windows computers.  There is no longer any need to purchase a separate application to archive files in .zip format.

Note that Lion no longer includes the Stuffit Expander program, an unarchiving application for .sit files which was popular among Mac users.

To Compress/Archive Files

1. Select the files you wish to archive.
2. Right-click and choose Compress [icon’s name] from the contextual menu
   Or
   Choose File > Compress [icon’s name] from the Finder menu
   Or
   Click the Action button on the Finder toolbar and choose Compress [icon’s name] menu.
3. To unarchive a .zip file, double-click it.

Tomorrow, I’ll look at an application that gives you a bit more control over compressing your files.

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