title: Excel: Convert calendar week (format ww.yyyy) into date
body: <p>I need to convert an Excel calendar week date into the actual date. </p>
  
  <p>Excel calendar week format = ww.yyyy (e.g. 31.2014); 
  Expected output = 7/28/2014  (return the Monday of the week)</p>
  
  <p>What formula should I use ?</p>