download csv file from c drive

Question

I want to download file from c drive using jquery on button click.

 

  **file name dynamic 

 

I use this code 

 

  1) window.open('file:///C://foldername//Report.csv', '_blank');

 2) window.location = 'file:///C://foldername//Report.csv';

 

var url = 'file:///C://foldername//Report.csv';

3 ) window.open(url, '_blank');

4)  window.location = url; 

 

only blank window open but not download