It appears that loading the workbook in read-only mode (wb = load_workbook(filepath, read_only=True)) means that for worksheet ws, we see that ws.max_column = ws.max_row = None ...

我也遇到了同样的问题，【助手】相关设置和【话题标题】都还存在，但是对话窗口内的【对话记录】全都为空 ...