23:27:49 Create new PHPExcel object
23:27:49 Set document properties
23:27:49 Add some data
23:27:49 Sum of Range #1 is 23
23:27:49 Sum of Range #2 is 33
23:27:49 Sum of both Ranges is 56
23:27:49 Minimum value in either Range is 3
23:27:49 Maximum value in either Range is 17
23:27:49 Average value of both Ranges is 9.333333333333334
23:27:49 Rename worksheet
23:27:49 Write to Excel2007 format
Fatal error: Class 'ZipArchive' not found in /var/www/html/builders/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 227