06:00:25 Create new PHPExcel object
06:00:25 Set document properties
06:00:25 Add some data
06:00:25 Sum of Range #1 is 23
06:00:25 Sum of Range #2 is 33
06:00:25 Sum of both Ranges is 56
06:00:25 Minimum value in either Range is 3
06:00:25 Maximum value in either Range is 17
06:00:25 Average value of both Ranges is 9.333333333333334
06:00:25 Rename worksheet
06:00:25 Write to Excel2007 format

Fatal error: Uncaught exception 'PHPExcel_Writer_Exception' with message 'Could not close zip file /var/www/phsdsbc/vendor/phpoffice/phpexcel/Examples/03formulas.xlsx.' in /var/www/phsdsbc/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:399 Stack trace: #0 /var/www/phsdsbc/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007->save('/var/www/phsdsb...') #1 {main} thrown in /var/www/phsdsbc/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 399