Tip: if you cannot see the .htaccess file in cPanel File Manager, enable Show Hidden Files (dotfiles) in File Manager settings.
You can use an Apache rewrite rule to serve a file at a shorter URL. For example, to make example.com/files/folder/sitemap.html available at example.com/sitemap/, add this to the site’s .htaccess file:
RewriteEngine On
RewriteRule ^sitemap/$ /files/folder/sitemap.html [L]Replace sitemap and the destination path with values for your site. This rule maps requests for /sitemap/ to the specified file without changing the URL shown in the browser. Ensure Apache’s rewrite module is enabled and that the file path is correct.