title: Microsoft.Office.Interop.Excel missing in the Component Name list
body: <p>Microsoft.Office.Interop.Excel in the Component Name list is missing on the Assemblies page.</p>
  
  <p>I need to include that:</p>
  
  <pre><code>using Microsoft.Office.Interop.Excel;
  </code></pre>
  
  <p>But it throws error: <em>The type or namespace name 'Office' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?)</em> </p>
  
  <p>And I can't find it in References either.</p>