Download excel file with ajax

Don't use a form at all. Just a hyperlink on your page that says "Download" or "Export". The hyperlink must refer to the controller/function that generates the Excel file and forces the download.
In that case, the current page will stay active.
And you don't need AJAX.

Thanks for your solution i do this:

Code:

<a href="<?php echo site_url('admin/export')?>" class="btn btn-warning btn-sm"><i class="fa fa-file-excel-o"></i> <?php echo $this->lang->line('export'); ?></a>

and work, but page page reload also...