06:45:29 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'PHPExcel_Chart_Gridlines' not found in /home/httpsrejanstsapp/public_html/protected/extensions/PHPExcel/Classes/PHPExcel/Chart.php:397
Stack trace:
#0 /home/httpsrejanstsapp/public_html/protected/extensions/PHPExcel/Classes/PHPExcel/Writer/Excel2007/Chart.php(97): PHPExcel_Chart-&gt;getMajorGridlines()
#1 /home/httpsrejanstsapp/public_html/protected/extensions/PHPExcel/Classes/PHPExcel/Writer/Excel2007.php(309): PHPExcel_Writer_Excel2007_Chart-&gt;writeChart(Object(PHPExcel_Chart))
#2 /home/httpsrejanstsapp/public_html/protected/extensions/PHPExcel/Examples/33chartcreate-multiple-charts.php(211): PHPExcel_Writer_Excel2007-&gt;save('/home/httpsreja...')
#3 {main}
  thrown in <b>/home/httpsrejanstsapp/public_html/protected/extensions/PHPExcel/Classes/PHPExcel/Chart.php</b> on line <b>397</b><br />