Definition: "Mod_archive.php" is a file extension typically used with WordPress to manage archives for pages on a blog or website. It's part of the `wp-content` folder in WordPress, similar to using folders within directories in other operating systems. The word "mod_archive.php" refers to a type of PHP script that helps manage and organize archive files in a database. It is used by WordPress to allow users to easily add, delete, or modify posts while keeping them consistent across different sites with the same content.