[D] providers
[F] .htaccess
[F] class-wp-sitemaps-index.php
[F] class-wp-sitemaps-provider.php
[F] class-wp-sitemaps-registry.php
[F] class-wp-sitemaps-renderer.php
[F] class-wp-sitemaps-stylesheet.php
[F] class-wp-sitemaps.php