Windows/Mac/Linux: The latest version of OpenOffice.org, the free and open-source office suite, improves startup times by over 40 percent (by some tests), improves importing and support for password-protected and 2007 office files, and improves many areas of the Calc spreadsheet.
You can check out the full feature list at OpenOffice.org, but the majority is nitty-gritty stuff.
Importing Office 2007-formatted files seems to have gotten lots of attention in this release as well, and password-protected files can successfully be loaded, provided you’ve got the password.
OpenOffice.org 3.2 is a free download for Windows, Mac, and Linux systems.