12:21:52 Create new PHPExcel object<br />12:21:52 Set document properties<br />12:21:52 Add some data<br /><br />
<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type float in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type float in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
<br />
<b>Notice</b>:  Trying to access array offset on value of type float in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
12:21:52 Set column widths<br />12:21:52 Add conditional formatting<br />12:21:52 Duplicate the conditional formatting across a range of cells<br />12:21:52 Set fonts<br />12:21:52 Set header/footer<br />12:21:52 Set page orientation and size<br />12:21:52 Rename worksheet<br />12:21:52 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'ZipArchive' not found in /var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:220
Stack trace:
#0 /var/www/html/vendor/phpoffice/phpexcel/Examples/08conditionalformatting.php(163): PHPExcel_Writer_Excel2007-&gt;save()
#1 {main}
  thrown in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>220</b><br />