title: Increment by one everytime loop runs
body: <p>How can I make the cell number increase by one every time it loops through all of the sheets? I got it to loop through the different sheets itself but I'm not sure how to add +1 to the cell value.</p>
  
  <pre><code>for sheet in sheetlist:
          wsX = wb.get_sheet_by_name('{}'.format(sheet))
  
          ws2['D4'] = wsX['P6'].value
  </code></pre>
  
  <p>I'm trying to get just the <code>['D4']</code> to change to D5,D6,D7.. etc up to 25 automatically. </p>