title: React CSV download is not in CSV format
body: <p>I'm using react CSV to convert my data to excel CSV.<Br/>
  However when I use the react CSV library to download my data in CSV,<br/> I get this file:</p>
  <p><img src="https://i.stack.imgur.com/a1pqe.png" alt="The downloaded file" /></p>
  <p>The content of this file is comma seperated so good to add in CSV.<br/>
  So why isn't my file in <code>.CSV</code> format?</p>
  <p>This is my code for CSVLink:</p>
  <pre><code>&lt;CSVLink data={dataex} filename={&quot;belhistorie.csv&quot;} className=&quot;btn btn-primary&quot;&gt;
      Download me
  &lt;/CSVLink&gt;
  </code></pre>
  <p>This is my dataex object:</p>
  <pre><code>const dataex = [{
       CallID: '247279',
       OriginationName: '',
       DestinationName: 'destination',
       OriginationNumber: '+31555776005',
       DestinationNumber: '+31410008993',
       Calltime: '00:17',
       StartTime: '06-12-2018 08:00',
       EndTime: '06-12-2018 08:00',
       Type: 'incoming',
       State: 'Connected'
  },{
       CallID: '247280',
       OriginationName: 'person1',
       DestinationName: 'person2',
       OriginationNumber: '+31777779314',
       DestinationNumber: '803',
       Calltime: '00:54',
       StartTime: '06-12-2018 08:00',
       EndTime: '06-12-2018 08:00',
       Type: 'incoming',
       State: 'Connected'
  }];
  </code></pre>