16:41:14 Create new PHPExcel object
16:41:14 Set document properties
16:41:14 Add some data
16:41:14 Define named ranges
16:41:14 Rename named ranges
16:41:14 Rename worksheet
16:41:14 Create new Worksheet object
16:41:14 Add some data
16:41:14 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/oauth-api/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet.php on line 1164