title: app.config - how to remove file atribute from appSettings?
body: <p>Programmatically, how do I remove the <em>File</em> Attribute from <em>appSettings</em> in App.Config? The line is:</p>
  
  <pre><code>&lt;appSettings File="c:\thisApp\override.config"&gt; 
  </code></pre>
  
  <p>I'd like it to become</p>
  
  <pre><code>&lt;appSettings&gt;
  </code></pre>