title: How to rename a file extension with NetBeans?
body: <p>I'm use NetBeans 8 for my new Maven Java Web project.
  The code generation really helps.</p>
  
  <p><strong><em>But, how Am I supposed to rename the extension of a file?</em></strong></p>
  
  <pre><code>hello.jsp --&gt; hello.xhtml
  </code></pre>
  
  <p><em>NetBeans "rename" only allow to change the first part, not the extension.</em> Do I really have to go to my system-folder and change the file there?</p>