title: ExcelWriter ValueError: Excel does not support datetime with timezone when saving df to Excel
body: <p>I'm running on this issue for quite a while now.</p>
  
  <p>I set the writer as follows:</p>
  
  <pre><code>writer = pd.ExcelWriter(arquivo+'.xlsx', engine = 'xlsxwriter', options = {'remove_timezone': True})
  df.to_excel(writer, header = True, index = True)
  </code></pre>
  
  <p>This code is inside s function. The problem is every time I run the code, it gets information from the database, which contains two columns datetime64[ns, UTC] object with time zone info. But when the code to save to Excel runs I receive:</p>
  
  <pre><code>ValueError: Excel does not support datetimes with timezones. Please ensure that datetimes are timezone unaware before writing to Excel.
  </code></pre>
  
  <p>I have already tried several things like 'dt.tz_convert', replace(tzinfo=None) and other solutions I have found here and around.</p>
  
  <p>The code runs without problem in my personal computer, my colleague at work with the same machine specs can run the code. Only in my machine it doesn't. I already reinstalled python and all the packages, including formatting the machine and nothing, the error persists.</p>
  
  <p>xlrd v1.1.0</p>
  
  <p>xlsxwriter v1.0.4</p>
  
  <p>python 3.7.4</p>
  
  <p>pandas v0.25.1</p>
  
  <p>If someone could bring some light into this issue I would much appreciate it.</p>
  
  <p>Thanks</p>