#### Code Sample, a copy-pastable example if possible N/A #### Problem description I'd like to suggest that the documentation about formatting Excel sheets in the I/O tools page here: https://pandas.pydata.org/pandas-docs/stable/user_guide/io.html?highlight=xlsxwriter#style-and-formatting be improved by putting in a reference to the numerous examples provided by the xlsxwriter documentation here: https://xlsxwriter.readthedocs.io/pandas_examples.html I'm willing to do a PR, but I didn't know if there was some reason for not including the external reference on that particular page. #### Expected Output N/A #### Output of ``pd.show_versions()`` pandas 0.24.2