title: Add indexed sheets to Excel workbook w/out Openpyxl?
body: <p>Working with Python 2.7 and I'd like to add new sheets to a current Excel workbook indexed to a specific position. I know Openpyxl's <code>create_sheet</code> command will allow me to specify an index for a new sheet within an existing workbook, but there's a catch: Openpyxl will delete charts from an existing Excel workbook if opened &amp; saved. And my workbook has charts that I don't wish to be deleted. </p>
  
  <p>Is there another way I can open this workbook, create a a few blank sheets that are located precisely after the existing first sheet, all without deleting any of the workbook's charts? </p>