12:46:40 Create new PHPExcel object
12:46:40 Set document properties
12:46:40 Add some data
12:46:40 Sum of Range #1 is 23
12:46:40 Sum of Range #2 is 33
12:46:40 Sum of both Ranges is 56
12:46:40 Minimum value in either Range is 3
12:46:40 Maximum value in either Range is 17
12:46:40 Average value of both Ranges is 9.333333333333334
12:46:40 Rename worksheet
12:46:40 Write to Excel2007 format
Fatal error: Uncaught Error: Class 'ZipArchive' not found in /var/www/html/caritsan/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:227
Stack trace:
#0 /var/www/html/caritsan/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007->save('/var/www/html/c...')
#1 {main}
thrown in /var/www/html/caritsan/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 227