Fatal error: Uncaught Error: Undefined constant "PHPEXCEL_ROOT" in /export/vol2/httpd/htdocs/administration/facilities/webapps/codebase-php/lib/PHPExcel/Shared/trend/powerBestFitClass.php:29
Stack trace:
#0 {main}
  thrown in /export/vol2/httpd/htdocs/administration/facilities/webapps/codebase-php/lib/PHPExcel/Shared/trend/powerBestFitClass.php on line 29