title: How to append rows in CSV export in laravel
body: <pre><code>Laravel : 5.8
  PHP : 7.2 
  maatwebsite/excel : 3.1
  </code></pre>
  
  <p>I am using <code>maatwebsite/excel</code> package to export my large data set in CSV file, however, I couldn't find the way to append the rows in CSV file in the latest version of the package. Can anyone help me with this?</p>