On Aug 31, 6:23*am, Judy Ruprecht wrote:
.. Excel 2007 or 2010, installed on a Windows-based computer (Otherwise,
macros needed for evaluation won't work!)

You may like to consider that Windows is becoming less important,
and that will continue for the foreseeable future. Requiring windows
will,
over time, decrease the customer base for the spreadsheet.

Windows is being slowly (or not so slowly if you believe some
zealots)
by
- Android on tablets and smartphones
- Apple's IOS on Macintosh and tablets/IPads/IPhones
- various web-based spreadsheets, including those by Google
and, in the near future, Microsoft
- Microsoft's smartphones can, for the moment, be ignored

There is a reasonable argument that tablets and smartphones will
dominate for mobile applications, e.g. at the launchpoint or in the
clubhouse

You may care to consider a spreadsheet that isn't tied to Windows,
either because it is available for all operating systems, or because
it
is web-based; there are several examples of each of those.