Warning: Use of undefined constant PHPEXCEL_ROOT - assumed 'PHPEXCEL_ROOT' (this will throw an Error in a future version of PHP) in /opt/lampp/htdocs/dhtmlxSuite_v5.1/codebase/grid-excel-php/lib/PHPExcel/Autoloader.php on line 70
Fatal error: Uncaught Error: Class 'PHPExcel_Shared_String' not found in /opt/lampp/htdocs/dhtmlxSuite_v5.1/codebase/grid-excel-php/lib/PHPExcel/Autoloader.php:11
Stack trace:
#0 {main}
thrown in /opt/lampp/htdocs/dhtmlxSuite_v5.1/codebase/grid-excel-php/lib/PHPExcel/Autoloader.php on line 11