title: Excel: Convert MM/YYYY to MM/DD/YYYY
body: <p>We have a large sheet with expiration dates. Most are currently formatted MM/YYYY. Unforunately the new ones are MM/DD/YYYY. How can I add 01 (first day of the month) to the MM/YYYY formatted dates so they comply with MM/DD/YYYY?</p>
  
  <p>Example:
  Convert 05/2016 to 05/01/2016</p>
  
  <p>Thanks!</p>