MVC :

To add new "spark view engine" in mvc3 or 4 application:

C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\ItemTemplates\CSharp\Web\MVC 3\CodeTemplates\AddView


C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\ItemTemplates\CSharp\Web\MVC 4\CodeTemplates\AddView

add the Spark folder --> add the ViewEngine.xml file

<?xml version=1.0 endcoding="utf-8" ?>
<ViewEngine DisplayName="Spark"
  ViewFileExtension=".Spark"
  DefaultLayoutPage="~Views/Shared/_Layout.spark"
  PartialViewFileExtension=".spark" />