title: Pandas - split large excel file
body: <p>I have an excel file with about 500,000 rows and I want to split it to several excel file, each with 50,000 rows.</p>
  
  <p>I want to do it with pandas so it will be the quickest and easiest.</p>
  
  <p>any ideas how to make it?</p>
  
  <p>thank you for your help</p>