title: Automatically download Google Sheet into a specific folder by script
body: <p>I would like to automatize the following steps by google script.
  Google Sheet -> File -> Download as -> Microsoft Excel 
  I would like to save the file on my hard drive into a specific folder.</p>
  
  <p>How can I automatize this task with google script?</p>
  
  <pre><code>function downloadXLSX() {
    var ssID = SpreadsheetApp.getActive().getId();
    var URL = 'https://docs.google.com/spreadsheets/d/'+ssID+'/export?format=xlsx';
    *******HERE SHOULD BE THE PART TO DOWNLOAD INTO THE SPECIFIC FOLDER******
  }
  </code></pre>
  
  <p>Thanks for the help!</p>