23:06:57 Create new PHPExcel object
23:06:57 Set properties
23:06:57 Add some data
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<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/sigicov_sign/shared/PHPExcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>86</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type float in <b>/var/www/sigicov_sign/shared/PHPExcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>86</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type float in <b>/var/www/sigicov_sign/shared/PHPExcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>86</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type float in <b>/var/www/sigicov_sign/shared/PHPExcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>86</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/sigicov_sign/shared/PHPExcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>86</b><br />
23:06:57 Set column widths
23:06:57 Add conditional formatting
23:06:57 Set fonts
23:06:57 Set header/footer
23:06:57 Set page orientation and size
23:06:57 Rename sheet
23:06:57 Write to Excel2007 format
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<b>Fatal error</b>:  Uncaught Error: Class 'ZipArchive' not found in /var/www/sigicov_sign/shared/PHPExcel/Classes/PHPExcel/Writer/Excel2007.php:225
Stack trace:
#0 /var/www/sigicov_sign/shared/PHPExcel/Tests/08conditionalformatting.php(151): PHPExcel_Writer_Excel2007-&gt;save()
#1 {main}
  thrown in <b>/var/www/sigicov_sign/shared/PHPExcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>225</b><br />