title: how to return excel in Struts2 result?
body: <p>I am trying to return an Excel sheet from my struts2 action class. </p>
  
  <p>I am not sure what result-type should I be using?  Has anyone tried to return an excel from struts2 action class?<br>
  I would like the user to be presented with open/save/cancel dialog box</p>