The Excel worksheet reference to the X values for *series* (not including the column label).
(self, series)
| 79 | return self._workbook_writer.series_name_ref(series) |
| 80 | |
| 81 | def x_values_ref(self, series): |
| 82 | """ |
| 83 | The Excel worksheet reference to the X values for *series* (not |
| 84 | including the column label). |
| 85 | """ |
| 86 | return self._workbook_writer.x_values_ref(series) |
| 87 | |
| 88 | @property |
| 89 | def xlsx_blob(self): |