神奇～～帮几个同事安装配置python环境，突然跑着好好的一个脚本就跑不起来了。
workbook = xlrd.open_workbook(bom_path)
File "C:Python27libsite-packagesxlrd\__init__.py", line 170, in open_workbook
raise XLRDError(FILE_FORMAT_DESCRIPTIONS[file_format]+'; not supported')
xlrd.biffh.XLRDError: Excel xlsx file; not supported
可我自己却好好的，想不通，最后通过pip list检查了一下自己安装的库版本，找到了不同的地方。
我的电脑xlrd版本是1.2.0，给同事他们下载的是新的2.0.1,可能是是版本不兼容导致这个问题
Installing collected packages: xlrd
Successfully installed xlrd-2.0.1
pip list
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
Package Version
----------------------------- -------
astroid 1.6.6
backports-abc 0.5
backports.functools-lru-cache 1.6.1
click 7.1.2
configparser 4.0.2
enum34 1.1.10
et-xmlfile 1.0.1
futures 3.3.0
goto-statement 1.2
isort 4.3.21
jdcal 1.4.1
lazy-object-proxy 1.5.0
mccabe 0.6.1
numpy 1.16.6
openpyxl 2.6.4
pip 20.1.1
pylint 1.9.5
pyzmq 19.0.1
setuptools 41.2.0
singledispatch 3.4.0.3
six 1.15.0
spark-parser 1.8.9
tornado 5.1.1
uncompyle 2.0.0
uncompyle6 3.7.2
uniout 0.3.7
wrapt 1.12.1
xdis 5.0.1
xlrd 1.2.0
xlwt 1.3.0
zmq 0.0.0
于是尝试了一下：卸载重新装旧版本，问题解决 : -)：
pip uninstall xlrd
pip install xlrd==1.2.0