Read this blog post from Mathias Kunto and you will be able to do a sitemap.xml
There is also a Geta sitemap nuget package and github project. I haven't used it, but it looks promising:
I need to have a sitemap.xml but I don't see the option or module in order to configure the sitemap.xml for episerver 7. ¿Which module or plugin can help me with my porpuse?
Than you very much,