If you want to submit blogger sitemap to Google in terms of SEO which tells Google about your blog and its content then follow this steps:
- Sign in to Google Webmaster Tools;
- Click on the blog title for which you want to add sitemap;
- Click on Sitemaps button to add your blogspot;
- At the top right corner of the page, press Add/Test sitemap button add after your blog this line:
Then you can use “Submit Sitemap” button to add this.
You can test the result with this Test Sitemap button.