The blogspot.com website needs to be pasted inside the box, then click on Generate XML Sitemap and copy the code to paste in the blogger website. It will help you rank higher in Google searches.
Example:
https://comrelated.blogspot.com
https://techsrelated.blogspot.com
https://exchtml.blogspot.com
https://exctext.blogspot.com
XML Sitemaps help search engines find your blog posts and index them better. Google and Bing support XML Sitemaps. Using Blogger Sitemap, you can create an XML sitemap that includes all of your blog posts, rather than just those you recently published. Blogger (blogspot) XML sitemaps are easy to create.