Drupal nested xml views export

I use drupal and views. I need to create xml file using views. This can be done easily using any xml export module but I am not able to create deeper nested xml output like:

<itemslist>
 <items>
  <item>
   <item_nbr></item_nbr>
   <item_pic></item_pic>
  </item>
 </items>
</itemslist>

Can anybody point me to the right direction? Thank you.