title: pandas.read_excel parameter "sheet_name" not working
body: <p>According to <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.read_excel.html" rel="nofollow noreferrer">pandas doc for 0.21+</a>, <code>pandas.read_excel</code> has a parameter <code>sheet_name</code> that allows specifying which sheet is read. But when I am trying to read the second sheet from an excel file, no matter how I set the parameter (<code>sheet_name = 1</code>, <code>sheet_name = 'Sheet2'</code>), the dataframe always shows the first sheet, and passing a list of indices (<code>sheet_name = [0, 1]</code>) does not return a dictionary of dataframes but still the first sheet. What might be the problem here?</p>