There have been instances where people have made mention to me they would like to have Microsoft Office (MSO), but they can't afford the price for the software suite.
People should really consider OpenOffice instead of MSO. OpenOffice an open source software suite that almost does everything that MSO can do. It can even open and edit almost any MSO document or spreadsheet. You can even elect to save your documents and spreadsheets in MSO format.
Another great thing about OpenOffice is that you can choose how much you feel you can afford to pay to use it. If you can't really afford to pay anything (unlikely with the typicasl user that has a computer), then it's free to use.
I'm so impressed with OpenOffice that when my current version of MSO is no longer supported by Microsoft I'll make the total switch to OpenOffice.
You can find OpenOffice at: http://www.openoffice.org
You can also find OpenOffice as a portable application for the thumb/flash drive at: http://portableapps.com/appsA final disclaimer
OpenOffice may not be for everyone, or for every bussiness, but it should be fine for the typical home or student computer. Give it a try!