BUG: ExcelWriter creates Excel file with wrong sheet name.

[izanbf1803]

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

• 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.

Code Sample, a copy-pastable example

writer = pd.ExcelWriter("test.xlsx", engine="openpyxl")
pd.DataFrame().to_excel(writer, sheet_name="sheet", index=False)
writer.save()
pd.read_excel("test.xlsx", sheet_name="sheet")
>> KeyError: 'Worksheet sheet does not exist.'

Problem description

Executing DataFrame.to_excel() with sheet_name="sheet" creates an Excel with a sheet named "sheet1" instead of the requested name "sheet".

Expected Output

An Excel with a sheet named "sheet".

Output of pd.show_versions()

INSTALLED VERSIONS

commit : 9d598a5
python : 3.7.7.final.0
python-bits : 64
OS : Linux
OS-release : 5.8.0-38-generic
Version : #43~20.04.1-Ubuntu SMP Tue Jan 12 16:39:47 UTC 2021
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL : None
LANG : es_ES.UTF-8
LOCALE : es_ES.UTF-8

pandas : 1.2.1
numpy : 1.19.5
pytz : 2020.5
dateutil : 2.8.1
pip : 20.3.3
setuptools : 41.2.0
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 : None
pandas_datareader: None
bs4 : None
bottleneck : None
fsspec : None
fastparquet : None
gcsfs : None
matplotlib : None
numexpr : None
odfpy : None
openpyxl : 3.0.6
pandas_gbq : None
pyarrow : None
pyxlsb : None
s3fs : None
scipy : None
sqlalchemy : None
tables : None
tabulate : None
xarray : None
xlrd : None
xlwt : None
numba : None

[jmishra01]

This issue is exactly from openpyxl (engine) side.

If you use a different name for your sheet, openpyxl will create Excel with the requested name.

[izanbf1803]

In this case, i'll check if this bug is already reported in openpyxl. If it's not reported, i will create a new issue there.

[rhshadrach]

Thanks @izanbf1803. Please cross link the issue found or created in case other uses get here.

[mroeschke]

Since this is an upstream issue with openpyxl, closing.