title: EPPlus: Deleting column not working
body: <p>I tried using EPPlus to delete a column in my worksheet using the solution in: <a href="https://stackoverflow.com/questions/28359165/how-to-remove-a-column-from-excel-sheet-in-epplus">How to remove a column from excel sheet in epplus</a></p>
  
  <p>However, when I run this unit test, the data in column 2 simply gets cleared out. How do I remove a column altogether?</p>