05:22:41 Create new PHPExcel object
05:22:41 Set document properties
05:22:41 Add some data
05:22:41 Define named ranges
05:22:41 Rename named ranges
05:22:41 Rename worksheet
05:22:41 Create new Worksheet object
05:22:41 Add some data
05:22:41 Resolve range
Cell B1 {=PersonFN}: Maarten
Cell B3 {=PersonFN & " " & PersonLN}: Maarten Balliauw
Cell Person!B1:
Fatal error: Call to a member function getCell() on null in /var/www/yii2/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet.php on line 1164