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Automatically download file after load page php

I'm trying to implement a script on an html template where after loading the template, the file download starts automatically. My files in question are txt, csv and xlsx.

After 2 seconds, as per setTimeout, the script is activated but it does not download the file, but opens a new page as the content of it.

Another question I wanted to ask was whether it is possible to put the absolute path of the file as the folder containing them is nested at a higher level than $ _SERVER ["DOCUMENT_ROOT"].

$file = '/var/www/.........../file.txt';
    echo "<script>
                \$(function() {
                    \$('a[data-auto-download]').each(function(){
                    var \$this = \$(this);
                        setTimeout(function() {
                            window.location.href = \$this.attr('href');
                        }, 2000);
                    });
                });
            </script>
            <a data-auto-download href=\"".$file."\">here</a>";
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