You can use the nested formula CTRL+SHIFT+ENTER, however, I would recommend
using Conditional Sum - Go to Tools/Add ins and select conditional Sum.
"Kitbasher" wrote:

I have a long log and I need to look up and sum if it meets certain criteria.
I have used sumif and that works for one criteria but how do I do a sumif
type function if I have more than one.

If B1:B100=X and C1:C100=Y then SUM D1:D100 if they contain both X&Y