## ChartNumberFormat.format_code property Gets or sets the format code applied to a data label. ```python @property def format_code(self) -> str: ... @format_code.setter def format_code(self, value......save(file_name=ARTIFACTS_DIR + 'Charts.DataLabelNumberForma...is_linked_to_source) doc.save(file_name=ARTIFACTS_DIR + 'Charts.SetNumberFormatToCha...