Help Needed: Importing AI-Generated Sitemap to Existing Site

Hello everyone, This is my first message to the community. I need help regarding an issue that I am facing, which is I have created the sitemap using ai in relume but I am unable to import the same to an existing site. Every time I try to do so, It ask me to import to a starter site, therefore, I need help to import it same way like that. I know I can like do it page by page but need to understand how to do it the way I need. Looking forward to your answers. Thanks in advance, Rahul:)