Python 将所有.xls转换为.xlsx

您好，我在将所有.xls文件转换为.xlsx时遇到问题。另一个挑战是每个.xls文件都有多个工作表，我有很多文件要转换。你能找个人帮我解决吗

import glob
import pandas as pd
import os
from pandas import ExcelWriter

_list_of_xls_files = glob.glob(r'C:\Users\enter_your_pc_username_here\Documents\*xls')

for _xls_file in _list_of_xls_files:
    df = pd.read_excel(_xls_file,sheet_name = None)
    _list_of_tabs_inside_xls_file = df.keys()

    with ExcelWriter(str(_xls_file).replace('.xls','.xlsx')) as writer:

        for n, _sheet_name in enumerate(list_of_tabs_inside_xls_file):

            df[_sheet_name].to_excel(writer,'sheet%s' % n)

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