python 将一个xls格式文件另存为xlsx格式

import win32com.client as win32

fname = "C:\\myProjects\\daily\\data\\1229\\标准化文档-1226\\全量数据过滤表清单.xls"

excel = win32.gencache.EnsureDispatch('Excel.Application')

wb = excel.Workbooks.Open(fname)

wb.SaveAs(fname+"x", FileFormat = 51) #FileFormat = 51 is for .xlsx extension

wb.Close()#FileFormat = 56 is for .xls extension

excel.Application.Quit()