id, $row->customer_code, $row->name, $row->address, $row->branch_code, $row->date_of_birth, $row->email, $row->created_at ]; } public function headings() : array { return [ 'ID', 'Customer Code', 'Name', 'Address', 'Branch Code', 'Date of Birth', 'Email', 'Created At' ]; } public function columnFormats() : array { return [ 'A' => NumberFormat::FORMAT_NUMBER, 'F' => NumberFormat::FORMAT_DATE_DMYSLASH, 'G' => NumberFormat::FORMAT_DATE_DATETIME ]; } }