title: pip install openpyxl - ModuleNotFoundError: No module named 'et_xmlfile'
body: <p>The question or similar ones were often asked before, but I didn't come to a solution.
  I'm trying to install openpyxl by <code>pip install openpyxl</code> (already tried <code>pip3</code> install <code>openpyxl</code>) and always get the error message below. <br>
  I also already tried to install <code>jdcal</code> (worked) and <code>et_xmlfile</code> (didn't work, same error) separately beforehand.<br>
  I use <code>--no-cache-dir</code> because the output before was <code>Using cached et_xmlfile-1.0.1.tar.gz (8.4 kB)</code>, so I guessed that this could be the problem, but it wasn't.</p>
  <p>I'm using <code>Spyder 4.x</code>.</p>
  <p>I'd really appreciate your help ...</p>
  <hr />
  <pre><code>C:\Users\Lina\Spyder\Python\Scripts&gt;pip3 install --no-cache-dir C:\Users\Lina\Spyder\Python\Lib\site-packages\et_xmlfile-1.0.1.tar.gz
  Processing c:\users\lina\spyder\python\lib\site-packages\et_xmlfile-1.0.1.tar.gz
  
   ERROR: Command errored out with exit status 1:
       command: 'c:\users\lina\spyder\python\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '&quot;'&quot;'C:\\Users\\Lina\\AppData\\Local\\Temp\\pip-req-build-pa5jygs_\\setup.py'&quot;'&quot;'; __file__='&quot;'&quot;'C:\\Users\\Lina\\AppData\\Local\\Temp\\pip-req-build-pa5jygs_\\setup.py'&quot;'&quot;';f=getattr(tokenize, '&quot;'&quot;'open'&quot;'&quot;', open)(__file__);code=f.read().replace('&quot;'&quot;'\r\n'&quot;'&quot;', '&quot;'&quot;'\n'&quot;'&quot;');f.close();exec(compile(code, __file__, '&quot;'&quot;'exec'&quot;'&quot;'))' egg_info --egg-base 'C:\Users\Lina\AppData\Local\Temp\pip-pip-egg-info-nitpcy2b'
           cwd: C:\Users\Lina\AppData\Local\Temp\pip-req-build-pa5jygs_\
      Complete output (5 lines):
      Traceback (most recent call last):
        File &quot;&lt;string&gt;&quot;, line 1, in &lt;module&gt;
        File &quot;C:\Users\Lina\AppData\Local\Temp\pip-req-build-pa5jygs_\setup.py&quot;, line 40, in &lt;module&gt;
          from et_xmlfile import (
      ModuleNotFoundError: No module named 'et_xmlfile'
      ----------------------------------------
  ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
  </code></pre>