title: excel: Cannot save or export xml data. The xml map in this workbook are not exportable
body: <p>I want to export data back to an XML file, after some modification to data I imported from some other XML file (those first line variables never change).</p>
  
  <p>When I click Developer >> export </p>
  
  <p>Excel shows: </p>
  
  <blockquote>
    <p>cannot save or export XML data. The XML maps in this workbook are not
    exportable.</p>
  </blockquote>
  
  <p>This happes even when I do nothing to modify the data.</p>
  
  <p>I watched several export tutorials on YouTube, but none cover my problem.</p>