Where are the sitemap.xml's?

Me too! Searched files, folders, and database tables. There is a # (only) on line two of my sitemap that Google does not like, worried I am de-ranked for it with new Google policies? Hoped WordPress SEO updates would fix it but no fix. I could edit each generation. If I delete/reinstall the plugin I’ll have to rethink/reset a lot of parameters again, much else to do already…
Thank you! Anybody?

From what I understand the sitemaps are dynamically generated, not physical files. I have not found out yet how to determine the cause of the bad entry or how to fix, but I will let you know when I do. IF you have a static site, you could save it to your desktop, fix it, upload it to your site and then point google to it. But there would be no automatic updates.

mysite.com/page-sitemap.xml cannot be found for editing. Unselected WP-SEO sitemap option. Installed Google Sitemap Plugin. It generated TWO lines with # only (instead of only one with WP-SEO), so there may be something not right elsewhere, will figure that out someday.

Nonetheless, with GSP I could find mysite.com/sitemap.xml and remove the faulty entries. I can deactivate the Google Sitemap Plugin until I want a new sitemap, so no blind surprises.

I experimented back and forth with these two plugins. The faulty entries reoccur in the two file names. Thus activating GSP as needed and then editing the file is my workaround for now.

These files are generated and are not real files. Probably need to fix it in wordpress-seo/inc/class-sitemaps.php