title: openpyxl - load the workbook and save , open saved file with error message
body: <p>Error Message while opening the file:</p>
  
  <p>Excel found unreadable content in zz.xlsx. Do you want to recover the contents of the work book?If you trust the source of the workbook,click Yes.</p>
  
  <p>If I say "Yes" got "Repairs to zz.xlxs" pop up shows.</p>
  
  <p>Could any one please help me. What format of the excel could have caused this.
  As i tried sample workbook without any formatting it work fine.</p>
  
  <p>My code :</p>
  
  <pre><code>from openpyxl import Workbook
  from openpyxl import load_workbook
  #open existing workbook
  wb = load_workbook(filename = 'xx.xlsx')
  wb.save('zz.xlsx')
  </code></pre>
  
  <p>Appreciate your help.
  Thanks! </p>