On Fri, 30 May 2008 06:29:01 -0700, Peter
wrote:

Hi all

I am trying to find a formula that will sum the Value(s) were it matches the
specifed index number and where it falls between specific dates i.e. from
1/2/08 - 29/2/08
A B C
Index Invoice Date Value £
2 20/03/2008 £46,854.00
2 31/03/2008 £165,083.00
2 31/03/2008 £20,858.00
2 28/03/2008 £146,550.00
2 29/02/2008 £195,636.00

I have tried
=sum(if(a3:a7=2,if(b3:b7=&Date(2008,02,01),if(b3 :b7<=&Date(2008,02,29),(c3:c7) - ARRAY - but does not work

Any ideas?

In general:

=sumif(Invoice_Date,"="&date(2008,2,1),Value)-
sumif(Invoice_Date,""&date(2008,2,29),Value)

The date(2008,2,1) function may be replaced by a cell reference where the cell
contains the appropriate date.

Note that the equality in the criteria is within quotes, and concatenated with
the date.
--ron