title: Laravel Backpack export tables in excel and pdf through code
body: <p>I am using laravel backpack to brows database entries </p>
  
  <p>To add excel and pdf export functionality, i am using the <code>$this-&gt;crud-&gt;enableExportButtons();</code> function inside  MyCrudController.</p>
  
  <p>Generating the export by user interface work great, but I would like to be able to generate an export through code, so i can attach it to a daily cronjob. </p>
  
  <p>Does anyone know if its possible to hook into the export function, to save exports to memory or disk.</p>