Fatal error: Uncaught Error: Class 'PHPExcel_Style_Alignment' not found in C:\Apache24\htdocs\PortalUIS_PruebasVUCEM\excel\hojaExcelVucem.php:52 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\PortalUIS_PruebasVUCEM\excel\hojaExcelVucem.php on line 52