What is the significance of the <meta http-equiv="refresh" content="3;URL=http://... .csv"> element in the provided code snippet?

The <meta http-equiv="refresh" content="3;URL=http://... .csv"> element in the provided code snippet is used to automatically redirect the user to a specified URL after a specified time interval (3 seconds in this case). This can be useful for automatically redirecting users to another page or file without requiring any user interaction. However, using meta refresh for redirection is not recommended as it can disrupt user experience and may not be SEO-friendly.

&lt;?php
// Redirecting using PHP header function after 3 seconds
header(&quot;refresh:3;url=http://example.com/file.csv&quot;);
?&gt;