title: Change "dude.fbx" model in Skinned Model Sample
body: <p>Sorry for beginner question :( I'm new to XNA</p>
  
  <p>I was looking for an sample that describes how to rotate bones in a Model
  And i found that <a href="http://create.msdn.com/en-US/education/catalog/sample/skinned_model" rel="nofollow">http://create.msdn.com/en-US/education/catalog/sample/skinned_model</a></p>
  
  <p>there is model named "dude.fbx" in its content
  i tried to change the model but it always gives errors like: "No Animation" or "No Skinning Data"</p>
  
  <p>is there any free models like "dude.fbx" that work fine in Skinned Model Sample?
  or how can i build models like that?</p>
  
  <p>thanks</p>
  
  <p>(Sorry for bad english ^_^)</p>