def create_spreadsheet(service, title):
    """
    Create a new spreadsheet.

    :param service: Google service object
    :param title: Spreadsheet title
    :return: Newly created spreadsheet ID
    """
    spreadsheet = {
        'properties': {
            'title': title
        }
    }
    spreadsheet = service.spreadsheets().create(body=spreadsheet, fields='spreadsheetId').execute()
    return spreadsheet.get('spreadsheetId')