16:39:41 Create new PHPExcel object
16:39:41 Set document properties
16:39:41 Add some data
16:39:41 Sum of Range #1 is 23
16:39:41 Sum of Range #2 is 33
16:39:41 Sum of both Ranges is 56
16:39:41 Minimum value in either Range is 3
16:39:41 Maximum value in either Range is 17
16:39:41 Average value of both Ranges is 9.3333333333333
16:39:41 Rename worksheet
16:39:41 Write to Excel2007 format
Warning: ZipArchive::close(): Failure to create temporary file: Permission denied in /var/www/html/michael/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 388
Fatal error: Uncaught PHPExcel_Writer_Exception: Could not close zip file /var/www/html/michael/vendor/phpoffice/phpexcel/Examples/03formulas.xlsx. in /var/www/html/michael/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:389
Stack trace:
#0 /var/www/html/michael/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007->save('/var/www/html/m...')
#1 {main}
thrown in /var/www/html/michael/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 389