title: xlsx pandas write to s3 (with tabs)
body: <p>I have a project where i need to write dataframes to xlsx in an s3 bucket. 
  It's quite simple to load a file from s3 with pandas quite simply by:
      df= pd.read_excel('s3://path/file.xlsx')</p>
  
  <p>But writing a file to s3 gives me problems. </p>
  
  <pre><code> import pandas as pd
  
   # Create a Pandas dataframe from the data.
   df = pd.DataFrame({'Data': [10, 20, 30, 20, 15, 30, 45]})
  
  # Create a Pandas Excel writer using XlsxWriter as the engine.
  writer = pd.ExcelWriter('s3://path/', engine='xlsxwriter')
  df.to_excel(writer, sheet_name='Sheet1')
  writer.save()
  
  FileNotFoundError: [Errno 2] No such file or directory: 's3://path'
  </code></pre>
  
  <p>So how can i write xlsx files to s3 with pandas, preferably with tabs?</p>