Nayjest\Grids\Components\ExcelExport::getOnSheetCreate PHP Метод

    public function getOnSheetCreate()
    {
        if ($this->on_sheet_create === null) {
            $this->on_sheet_create = function (LaravelExcelWorksheet $sheet) {
                $sheet->fromArray($this->getData(), null, 'A1', false, false);
            };
        }
        return $this->on_sheet_create;
    }