I am looking at the instructions for trobleshooting noted here
https://weeblr.com/doc/products.forseo/current/troubleshooting/#trying-to-read-sitemap-triggers-a-404-error
The issue is that I am running IIS, and not apache. My understanding is that htAccess is not actually relevant for this and that this should be done via web.config.
What would the documentation for IIS look like?