Try these:

=IF(ISNUMBER(A1), ...

=IF(A1<"", ...

Hope this helps.

Pete

On Apr 7, 11:15*pm, Matthew G <Matthew
wrote:
What's the way to write in Excel "if cell A1 has a numeric value" or "if a
cell AI is not null"?

I'm using Excel 2007, and I'd like to make a formula that begins with that
condition, and goes on to have a string of other embedded functions. *Thanks
in advance.