title: DDE information in Excel
body: <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I wrote a program to read excel files using Apache POI which is working as expected. Next part is to implement - "To reject reading excel file if it contains DDE links/information.</p>
  
  <p>I read about DDE information via below links </p>
  
  <ul>
  <li><a href="https://en.wikipedia.org/wiki/Dynamic_Data_Exchange" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/Dynamic_Data_Exchange</a></li>
  <li><a href="http://jdde.pretty-tools.com/" rel="nofollow noreferrer">http://jdde.pretty-tools.com/</a></li>
  <li><p><a href="https://v8doc.sas.com/sashtml/win/z3ples.htm" rel="nofollow noreferrer">https://v8doc.sas.com/sashtml/win/z3ples.htm</a></p>
  
  <p>I could not get information on how  </p></li>
  <li><p>an excel file looks like with DDE information.</p></li>
  <li><p>to identify an excel file that contains DDE information</p>
  
  <p>It would be great if someone can help me in understanding the above two points.</p></li>
  </ul>
  
  <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Thanks in Advance</p>