title: How to change joomla url suffix
body: <p>I am using Joomla Sef URLs and its working fine except that i need '.htm' suffix instead of '.html', please help.</p>
  
  <p>currently my URLs appear like : </p>
  
  <pre><code>www.mysite.com/my-page.html
  </code></pre>
  
  <p>I want it to be like</p>
  
  <pre><code>www.mysite.com/my-page.htm
  </code></pre>