def save_data_file
      File.open(file_path(Phonelib::Core::FILE_MAIN_DATA), 'wb+') do |f|
        Marshal.dump(@data, f)
      end
    end
def save_data_file
      File.open(file_path(Phonelib::Core::FILE_MAIN_DATA), 'wb+') do |f|
        Marshal.dump(@data, f)
      end
    end
method saves parsed data to data files