18:20:19 Create new PHPExcel object
18:20:19 Set document properties
18:20:19 Add some data
18:20:19 Sum of Range #1 is 23
18:20:19 Sum of Range #2 is 33
18:20:19 Sum of both Ranges is 56
18:20:19 Minimum value in either Range is 3
18:20:19 Maximum value in either Range is 17
18:20:19 Average value of both Ranges is 9.3333333333333
18:20:19 Rename worksheet
18:20:19 Write to Excel2007 format
Warning: ZipArchive::close(): Failure to create temporary file: Permission denied in /var/www/backoffice/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 388
Fatal error: Uncaught PHPExcel_Writer_Exception: Could not close zip file /var/www/backoffice/html/vendor/phpoffice/phpexcel/Examples/03formulas.xlsx. in /var/www/backoffice/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:389
Stack trace:
#0 /var/www/backoffice/html/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007->save('/var/www/backof...')
#1 {main}
thrown in /var/www/backoffice/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 389