title: Installing openpyxl=2.4.1 version by using conda in spyder environment
body: <p>I am using Spyder environment and IPython for data analysis. I am trying to read large excel files. Thus, I am trying to use openpyxl module and read_only mode. But, I couldn't upgrade version of openpyxl. To use read_only mode, I want to get 2.4.1 version of openpyxl module.
  First, I typed <code>conda create -n openpyxl openpyxl</code> command to create an environment. Then I activated the environment by using <code>activate openpyxl</code> command. I activated python with <code>python &lt;script.py&gt;</code> command. I also install spyder into this environment by using <code>conda install spyder</code> command. When I typed this code, a spyder screen opens. However, when I tried to run the following code in this spyder screen</p>
  
  <pre><code>from openpyxl import load_workbook
  wb = load_workbook('file.xlsx', read_only=True)
  ws = wb['Sheet1']
  for row in ws.rows:
      for cell in row:
          print(cell.value)
  </code></pre>
  
  <p>It gives this error:</p>
  
  <pre><code>Traceback (most recent call last): 
  
   File "&lt;ipython-input-4-5c1badfdb387&gt;", line 1, in &lt;module&gt;
      from openpyxl import load_workbook
  
   File "openpyxl.py", line 8, in &lt;module&gt;
      from openpyxl import load_workbook
  ImportError: cannot import name load_workbook
  </code></pre>
  
  <p>Does anyone have an idea about how to fix this problem?</p>