06:50:32 Create new PHPExcel object<br />06:50:32 Set document properties<br />06:50:32 Add data<br />06:50:32 Set data validation<br />06:50:32 Write to Excel5 format<br /><br />
<b>Warning</b>:  fopen(/var/www/html/back/vendor/phpoffice/phpexcel/Examples/15datavalidation-xls.xls): failed to open stream: Permission denied in <b>/var/www/html/back/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/OLE/PPS/Root.php</b> on line <b>90</b><br />
<br />
<b>Fatal error</b>:  Uncaught exception 'PHPExcel_Writer_Exception' with message 'Can't open /var/www/html/back/vendor/phpoffice/phpexcel/Examples/15datavalidation-xls.xls. It may be in use or protected.' in /var/www/html/back/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/OLE/PPS/Root.php:93
Stack trace:
#0 /var/www/html/back/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(226): PHPExcel_Shared_OLE_PPS_Root-&gt;save('/var/www/html/b...')
#1 /var/www/html/back/vendor/phpoffice/phpexcel/Examples/15datavalidation-xls.php(127): PHPExcel_Writer_Excel5-&gt;save('/var/www/html/b...')
#2 {main}
  thrown in <b>/var/www/html/back/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/OLE/PPS/Root.php</b> on line <b>93</b><br />