Describes the cause and action for error messages.
Error Message(English)：
python read_excel missing values
pandas.read_excel ? pandas 0.22.0 documentation
https://pandas.pydata.org/pandas-docs/version/0.22/generated/pandas.read_excel.html
Python Pandas read_excel doesn't recognize null cell - Stack Overflow
https://stackoverflow.com/questions/39334543/python-pandas-read-excel-doesnt-recognize-null-cell
Pandas read_excel removes columns under empty header
https://stackoverflow.com/questions/53615545/pandas-read-excel-removes-columns-under-empty-header
python read excel data, filling missing values using pandas ...
https://stackoverflow.com/questions/48183643/python-read-excel-data-filling-missing-values-using-pan・・・
Python Pandas read_excel dtype str replace nan by blank ...
https://stackoverflow.com/questions/45148292/python-pandas-read-excel-dtype-str-replace-nan-by-blank・・・
Using Pandas to pd.read_excel() for multiple worksheets of the ...
https://stackoverflow.com/questions/26521266/using-pandas-to-pd-read-excel-for-multiple-worksheets-o・・・
Pandas Excel Tutorial: How to Read and Write Excel files - - Erik Marsja
https://www.marsja.se/pandas-excel-tutorial-how-to-read-and-write-excel-files/
Python Pandas read_excel to Import Excel File Into DataFrame - wellsr ...
https://wellsr.com/python/python-pandas-read_excel-to-import-excel-file-into-dataframe/
read_excel with dtype=str converts empty cells to the string 'nan' - GitHub
https://github.com/pandas-dev/pandas/issues/20377