title: Excel - How to integrate a column header into a formula?
body: <p>How do I automatically sum columns B:E - based on the reporting month? I.e. I want a YTD sum that includes everything up to and including the reporting month. The reporting month is the input.</p>
  
  <p>Thanks!</p>
  
  <p>Link to the image [1]: <a href="http://i.stack.imgur.com/4GP35.png" rel="nofollow">http://i.stack.imgur.com/4GP35.png</a></p>