I'm trying to use the SumIf Function (as I understand its use) and I keep
running into the same problems -- in many cases I have more than one
criterion for addind a specific cell.  Is there a way to modify SumIf to
allow for multiple criteria?  I try to do it in the insert ...

In Excel2003, how can I remove the list of recently opened files in the Open
section of the Task Pane?

The new ribbon interface has been a serious productivity killer for
me. I have read the reasoning behind the new interface and I agree
with most of it, but there is some inconsistency as to why we can't
have a "classic menu" option. Outlook 2007 still has a menu bar and

I work for a charity. We have an agency which collects new donors for us. On
a weekly basis, this agency sends me a spreadsheet file containing data about
the new donors which I import into our database.
One item of data they collect is credit card numbers as credit cards are