I am trying to use the sumif statement in excel and want to set the criteria
to a "less than" date. The only way I can get the formula to work is by
hardcoding the date into the sumif statement i.e
=sumif(A1:II1,"<31-OCT-05",A2:II2). However I want to copy this formula using
a number of different dates and do not want to individually hard code the
date. I want to replace the hard coded date with a cell reference that
contains the date. When I do this I get the microsoft excel pop up box
telling me there is an error in my formula.
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