title: Insert a row at the end of an Excel file without it's old data
body: <p>How can I add new data to an existing Excel spreadsheet?</p>
  
  <p>For example: before <br>
  <a href="https://i.stack.imgur.com/k9IDU.png" rel="nofollow noreferrer">existing spreadsheet</a></p>
  
  <p>after <br>
  <a href="https://i.stack.imgur.com/wvBGF.png" rel="nofollow noreferrer">spreadsheet with added data</a></p>