错误提示：Missing optional dependency ‘xlrd‘. Install xlrd ＞= 1.0.0 for Excel support Use pip or conda
raise ImportError(msg) from None
ImportError: Missing optional dependency 'xlrd'. Install xlrd >= 1.0.0 for Excel support Use pip or conda to install xlrd.
cmd.exe中输入：pip install xlrd
重新运行python，提示以下错误：
ValueError: Your version of xlrd is 2.0.1. In xlrd >= 2.0, only the xls format is supported. Install openpyxl instead.
cmd.exe中输入：pip install openpyxl
