Convert RSS feed to a .RSS fomat

Design help Custom code
1

Does anyone know of a way to convert the RSS feed to a .rss address instead of a .xml ?

The place we’ve embedded it is requesting this change

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

2

You might be able to add a redirect into your site configuration;
Something like;

/blog/rss.rss → /blog/rss.xml