Hi,
I am trying to count the amount of times each month occurs in a column using the formula =SUMPRODUCT(--(C$3:C$6<>""),--(MONTH(C$3:C$6)=1)) with the date in the cell reading 12/01/2012, 11/02/2012, etc. However, I have cells which show 00/01/1900 and although I have blanked these cells out by formatting theses cells, they still seem to be counted - any ideas?
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