In Google’s effort to get into the Applications on Demand market, they
are now offering the Google Spreadsheets beta program
([http://spreadsheets.google.com]). By no means is the spreadsheet as
fully featured as Excel or OpenOffice, but it does offer most of the
functionality you would need such as cell formatting, formulas,
sorting, and multiple worksheets. Of course, the major benefit is it
is available online from anywhere. You can even share your
spreadsheets with others who have Google accounts. It’s definitely
worth a try.

While you may have to submit your email and be on a waiting list, the
wait shouldn’t be too long (took 6 hours to get my activation after I
submitted my email).