23:57:39 Create new PHPExcel object
23:57:39 Set document properties
23:57:39 Add some data
23:57:39 Define named ranges
23:57:39 Rename named ranges
23:57:39 Rename worksheet
23:57:39 Create new Worksheet object
23:57:39 Add some data
23:57:39 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 C:\xampp\htdocs\oa\vendor\phpoffice\phpexcel\Classes\PHPExcel\Worksheet.php on line 1164