Submitting a sitemap to Search Engines is necessary to crawl your pages and update your content in Search Results.
For access your blog’s sitemap follow step by Steps:
1 - Type http://Your-Blogger.blogspot.in/sitemap.xml in your address bar.
2 - Replace Your-Blogger with own address.
3 - Click Enter for Download or Save sitemap in .xml format.
4 - After Save use As per Your Needs.