how to create XML sitemap

Create an XML sitemap as well as robots.txt file that allows all the robots to crawl all data. (Make use of XML sitemap generators)

plz help..

You can follow this guide to create a sitemap for your website: https://www.cloudways.com/blog/create-wordpress-sitemap/

thanks

Sitemap can create manually.Alternatively,there are a number of third-party tools that can help you to generate Sitemaps.you can use <1> www.xml-sitemaps.com, www.freesitemapgenerator.com , www.sitemapdoc.com procedure is very simple just put up the url and get the sitemap.
<2> you can use a free sitemap generating tools like xenu.