00:33:16 Create new PHPExcel object<br />00:33:17 Set document properties<br />00:33:17 Add some data<br />00:33:17 Sum of Range #1 is <br />
<b>Fatal error</b>:  Class 'PHPExcel_Calculation_Token_Stack' not found in <b>/home/ymswebso/public_html/winhaitivilla/vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation.php</b> on line <b>2760</b><br />