title: Why does excel not sort these dates properly?
body: <p>See the attached pictures. The cells are formated as dates. They are formulas with =IF(ISERROR(..),..,..).</p>
  <p><a href="https://i.stack.imgur.com/Ylftx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ylftx.png" alt="enter image description here" /></a></p>