title: How to use PHPExcel correctly with Symfony 2
body: <p>I need to use <a href="http://www.phpexcel.net/"><code>PHPExcel</code></a> with a <code>Symfony2</code> project. Anyone know how to set up the project correctly to use the library? Should i put it in the vendor directory? What should be changed in the configuration files etc?</p>