我按步骤安装,怎么xlrd不支持xls呢?
Traceback (most recent call last):
File "C:\my code\test001.py", line 2, in <module>
xlrd.open_workbook('class01.xlsx')
File "C:\my code\venv\lib\site-packages\xlrd\__init__.py", line 170, in open_workbook
raise XLRDError(FILE_FORMAT_DESCRIPTIONS[file_format]+'; not supported')
xlrd.biffh.XLRDError: Excel xlsx file; not supported