title: xml parsing in C# .net Core
body: <p>It seem the <code>System.Xml</code> is not available in .net core (unit test)</p>
  
  <p>I found a nu get package called DocumentFormat.OpenXml but couldn't find code examples on how to use one.</p>
  
  <p>My requirement is simple to be able to parse a single element like this. Any suggestions.</p>
  
  <pre><code>"&lt;message Att='Hello'/&gt;"
  </code></pre>