Conditional formate:show by color when expiration dates are overdu
 

I am creating a chart that in one column shows the intervals (by month) of
the specific task that is to be renewed by. Then I have a completed date row
and a due Date row. I would like the due date cells to change red and to
display yellow text saying overdue, when that task is past the interval of
the completion date

PLease help thanks

Dan