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Showing content from https://github.com/pandas-dev/pandas/issues/43143 below:

read_excel throws generic IndexError if header argument specifies non-existent rows · Issue #43143 · pandas-dev/pandas · GitHub

• I have checked that this issue has not already been reported.

It doesn't seem to be based on a search for read_excel and indexerror

• I have confirmed this bug exists on the latest version of pandas.

• (optional) I have confirmed this bug exists on the master branch of pandas.

Note: Please read this guide detailing how to provide the necessary information for us to reproduce your bug.

Given an excel file with one tab that contains the text header in cell A1 and nothing else:

In [1]: import pandas

In [2]: pandas.read_excel("~/temp/test_pandas/headers.xlsx", header=[0, 1])
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)

*snip - see comment below for full traceback*

    564                     if index_col is not None:

IndexError: list index out of range

The code throws a (presumably unintended) IndexError, which is difficult to respond to as the actual cause of the error is not specified.

A ParserError (or other appropriate error type) with an error message that makes the cause of the problem clear.

commit : 5f648bf
python : 3.9.6.final.0
python-bits : 64
OS : Linux
OS-release : 4.15.0-154-generic
Version : #161-Ubuntu SMP Fri Jul 30 13:04:17 UTC 2021
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL : None
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8

pandas : 1.3.2
numpy : 1.21.2
pytz : 2021.1
dateutil : 2.8.2
pip : 20.3.3
setuptools : 51.3.3
Cython : None
pytest : None
hypothesis : None
sphinx : None
blosc : None
feather : None
xlsxwriter : None
lxml.etree : None
html5lib : None
pymysql : None
psycopg2 : None
jinja2 : None
IPython : 7.26.0
pandas_datareader: None
bs4 : None
bottleneck : None
fsspec : None
fastparquet : None
gcsfs : None
matplotlib : None
numexpr : None
odfpy : None
openpyxl : 3.0.7
pandas_gbq : None
pyarrow : None
pyxlsb : None
s3fs : None
scipy : None
sqlalchemy : None
tables : None
tabulate : None
xarray : None
xlrd : 2.0.1
xlwt : None
numba : None

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