04:38:53 Create new PHPExcel object
04:38:53 Set document properties
04:38:53 Add some data
04:38:53 Define named ranges
04:38:53 Rename named ranges
04:38:53 Rename worksheet
04:38:53 Create new Worksheet object
04:38:53 Add some data
04:38:53 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