Does sitemap.xml work for all search engines or only google? Is there a way to create an HTML sitemap or there only XML sitemap?
XML sitemaps are supported by all major search engines. Programs such as A1 Sitemap Generator can create both types of sitemaps for you. Depending on your needs, you may also be content with one of the free services that exist.
All najor seaerch engines supports sitemap in xml format. You can generate xml sitemap of your site online some websites provide this service and many of them are free. To know these site please search it on google.
If you want an easy way to tell all search engines that you have a sitemap.xml file then just add it's location in your robots.txt file and they will find it. Sitemap: http://www.mysite.com/sitemap.xml