23:27:49 Create new PHPExcel object
23:27:49 Set document properties
23:27:49 Add some data
23:27:49 Define named ranges
23:27:49 Rename named ranges
23:27:49 Rename worksheet
23:27:49 Create new Worksheet object
23:27:49 Add some data
23:27:49 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/html/builders/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet.php on line 1164