I am trying to average the range s4:s219 (omitting #DIV/0!) with a couple of criteria:
average s4:s219 if
c4:c219 <8/1/2009 and
d4:d219 =Y
Here is the current formula I've been trying to work with, with no success so far.
=IFERROR(AVERAGEIFS($S$4:$S$219,$D$4:$D$219,"=Y",$C$4:$C$219,"<8/1/2009"),0)
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