title: pandas.core.indexing.IndexingError: Too many indexers
body: <p>I want to extract electricity consumption for Site 2</p>
  
  <pre><code>&gt;&gt;&gt; df4 = pd.read_excel(xls, 'Elec Monthly Cons')
  &gt;&gt;&gt; df4
       Site Unnamed: 1 2014-01-01 00:00:00 2014-02-01 00:00:00 2014-03-01 00:00:00         ...         2017-08-01 00:00:00 2017-09-01 00:00:00 2017-10-01 00:00:00 2017-11-01 00:00:00 2017-12-01 00:00:00
  0    Site    Profile            JAN 2014            FEB 2014            MAR 2014         ...                    AUG 2017            SEP 2017            OCT 2017            NOV 2017            DEC 2017
  1  Site 1        NHH               10344                 NaN                 NaN         ...                         NaN                 NaN                 NaN                 NaN                 NaN
  2  Site 2         HH              258351              229513              239379         ...                         NaN                 NaN                 NaN                 NaN                 NaN
  </code></pre>
  
  <p>type</p>
  
  <pre><code>type(df4)
  &lt;class 'pandas.core.frame.DataFrame'&gt;
  </code></pre>
  
  <p>My goal is to take out the numerical value but I do not know how to set the index properly. What I have tried so far does not work at all.</p>
  
  <pre><code>df1 = df.loc[idx[:,1:2],:]
  </code></pre>
  
  <p>But</p>
  
  <pre><code>    raise IndexingError('Too many indexers')
  pandas.core.indexing.IndexingError: Too many indexers
  </code></pre>
  
  <p>It seems that I do not understand indexing. Does the series type play any role?</p>
  
  <pre><code>df.head
  &lt;bound method NDFrame.head of Site                   Site 2
  Unnamed: 1                 HH
  </code></pre>
  
  <p>EDIT</p>
  
  <pre><code>print (df.index)
  Index([             'Site',        'Unnamed: 1', 2014-01-01 00:00:00,
         2014-02-01 00:00:00, 2014-03-01 00:00:00, 2014-04-01 00:00:00,
         2014-05-01 00:00:00, 2014-06-01 00:00:00, 2014-07-01 00:00:00,
  </code></pre>
  
  <p>How to solve this?</p>