01:43:28 Create new PHPExcel object
01:43:28 Add some data and formulas
01:43:28 Calculated data
Value of A1 [=B1]: 100
Value of B1 [=A1+1]: 100
Value of A2 [=B2+1]: 100
Value of B2 [=A2]: 99
01:43:28 Write to Excel2007 format
Fatal error: Uncaught Error: Class 'ZipArchive' not found in /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:220
Stack trace:
#0 /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Examples/13calculationCyclicFormulae.php(82): PHPExcel_Writer_Excel2007->save('/home/audiomeet...')
#1 {main}
thrown in /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 220