docs: def _get_csv_from_section(d, pc, csv_data):
      """
      Get csv from paleo and chron sections
      :param dict d: Metadata
      :param str pc: Paleo or chron
      :return dict: running csv data
      """
      logger_jsons.info("enter get_csv_from_section: {}".format(pc))
  
      for table, table_content in d[pc].items():
          # Create entry for this table/CSV file (i.e. Asia-1.measTable.PaleoData.csv)
          # Note: Each table has a respective CSV file.
          csv_data[table_content['filename']] = OrderedDict()
          for column, column_content in table_content['columns'].items():
              # Set the "values" into csv dictionary in order of column "number"
              csv_data[table_content['filename']][column_content['number']] = column_content['values']
  
      logger_jsons.info("exit get_csv_from_section: {}".format(pc))
      return csv_data