Should i include all the below sitemap in my website sitemap.html sitemap.xml sitemap.rss robots.txt sitemap.ror sitemap-base.xml sitemap-code.xml sitemap-image.xml sitemap-mobile.xml sitemap-news.xml sitemap-video.xml urllist.txt
You do not need to include all these things. robots.txt, sitemap.xml or sitemap.html are most important.
You only need a sitemap.xml and robots.txt for Google webmaster tools proper crawling. Google only used XML sitemaps created properly with your site links, last modified, change frequency and priority (between 0 to 1).
XML sitemaps, image sitemap (if you have that), video sitemap (if you have that) and HTML sitemap are the most importtant in my opinion If you want to create image/video sitemaps, make sure you configure the tool you use for that (e.g. use a "video" preset in scan options or similar)
I just began to do the job of SEO. And it seems that we will learn sitemap tool in future to do the website optimization. Is it very difficult?
If your site is made of responsive theme then the sitemap-mobile.xml is not required because google will automaticaly fetch it, otherwise you have to mention the mobile optimised site urls in your sitemap-mobile.xml. Here is a instructions regarding mobile sitemap https://support.google.com/webmasters/answer/34648?hl=en. urllist.txt is no more needed as all the 3 search engines currently consider sitemap.xml sitemaps.ror currently has no use becoz most of the search engines doesnt prefer this format. According to me : sitemap.xml, robots.txt, sitemap-image.xml(if you often use image in your website) it is necessary. And I think this article will help you a lot in comparing the other sitemap formats. http://www.microsystools.com/products/sitemap-generator/help/website-sitemap-kinds-comparison/
If your site is made of responsive theme then the sitemap-mobile.xml is not required because google will automaticaly fetch it, otherwise you have to mention the mobile optimised site urls in your sitemap-mobile.xml. urllist.txt is no more needed as all the 3 search engines currently consider sitemap.xml sitemap.ror has no value currently. According to me : sitemap.xml, robots.txt, sitemap-image.xml(if you often use image in your website) it is necessary.