/**
  * Outputs the model to excel, applying all filters and searches needed
  *
  * When you want to change the output, there are two places to check:
  *
  * 1. $this->addExcelColumns($model), where the model can be changed to have labels for columns you
  * need exported
  *
  * 2. $this->getExcelData($data, $model) where the supplied data and model are merged to get output
  * (by default all fields from the model that have a label)
  */
 public function excelAction()
 {
     $model = $this->getModel();
     $model->set('gr2t_id_respondent_track', 'label', 'attribute_4', 'order', '5');
     foreach ($model->getColNames('has_orig') as $name) {
         $model->set($name . '_orig', 'label', $model->get($name, 'label') . ' {RAW]');
     }
     return parent::excelAction();
 }