btw, you can configure OO to be more like MSOffice http://searchopensource.techtarget.com/tip/1,289483,sid39_gci1190230,00.html
and worth mentioning that many govts (including the State of Massachusetts) have made the Open Document Format (ODF - a suite of applications based on Extensible Markup Language for text, presentations, spreadsheets and other office documents) their official standard (which is a format based on the format created by OpenOffice and is not currently supported by MS).
for more about ODF http://en.wikipedia.org/wiki/OpenDocument