However, there are many alternatives that will work just as well. We all know them, so there's little point in listing them.
It might be worthwhile to list some of the available (or soon to be available) Office Suites in case this URL was passed to someone not familiar with Linux software:
Corel Word Perfect (http://linux.corel.com/)
Star Office (http://www.sun.com/staroffice/)
There are others available too. Check this site's
Office Application (http://www.freshmeat.net/appindex/x11/office%20applications.html) listing.