Do XML sitemap files have to end with the
.xml file extension?
On the Bigcommerce platform, their XML sitemap file are defined as:
The sitemap file is all correctly marked up and and when saving locally its saves as an
.xml file. I've also seen some Joomla sitemap plugins create sitemaps with
The Sitemap Protocol site doesn't cover this.
I unfortunately don't have access to GWT too see if it verifies.