spreadsheet 获取名称管理器

$spreadsheet = \PhpOffice\PhpSpreadsheet\IOFactory::load($file_path);
$workSheet = $NamedRanges->getWorksheet();
$definedName = "xxxx";
//获取指定名称对应的数据
$range_array_data = $workSheet->namedRangeToArray($definedName);
//当前返回值返回的是行列二维数组