While attempting to omit certain columns from the network bulk upload by selecting "None", I am getting the following error. I figured we should be able to do this, since the none option is available. If all columns are populated, it works just fine. Thanks!

[Tue May 22 18:17:15.826348 2018] [:error] [pid 28385] [client 10.0.0.6:60018] PHP Fatal error: Uncaught exception 'PHPExcel_Exception' with message 'Invalid cell coordinate @2' in /var/www/openDCIM-18.01/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell.php:590\nStack trace:\n#0 /var/www/openDCIM-18.01/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet.php(1228): PHPExcel_Cell::coordinateFromString('@2')\n#1 /var/www/openDCIM-18.01/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet.php(1187): PHPExcel_Worksheet->_createNewCell('@2')\n#2 /var/www/openDCIM-18.01/bulk_network.php(159): PHPExcel_Worksheet->getCell('@2')\n#3 {main}\n thrown in /var/www/openDCIM-18.01/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell.php on line 590, referer: https://10.0.0.5/bulk_network.php?stage=headers