11:28:50 Create new PHPExcel object
11:28:50 Set document properties
11:28:50 Add some data
11:28:50 Sum of Range #1 is 23
11:28:50 Sum of Range #2 is 33
11:28:50 Sum of both Ranges is 56
11:28:50 Minimum value in either Range is 3
11:28:50 Maximum value in either Range is 17
11:28:50 Average value of both Ranges is 9.3333333333333
11:28:50 Rename worksheet
11:28:50 Write to Excel2007 format
Fatal error: Uncaught Error: Class 'ZipArchive' not found in /home/zxun/public_html/module7/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:220
Stack trace:
#0 /home/zxun/public_html/module7/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007->save('/home/zxun/publ...')
#1 {main}
thrown in /home/zxun/public_html/module7/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 220