An open source office suite compatible with other major office suites, OpenOffice.org is free to download, use, and distribute. It comprises of Writer, Calc, Impress, Draw, Base and Math.
www.openoffice.org
These interactive guides show you where your favorite menu and toolbar commands are located in Office 2010. Just click the command or button that you want to find and the guide will show you its location in the 2010 version of the program.
office.microsoft.com/en-us/outlook-help/learn-where-menu-and-toolbar-commands-are-in-office-2010-and-related-products-HA101794130.aspx