The most commonly modified files in a Zen Cart template are the files in
includes/templates/YOURTEMPLATE/templates, which control how a page looks.
These files are sometimes called “template files” but for clarity we’ll call them template pages, to differentiate them from sidebox files, language files or any other part of a template.
For example, the template page for the Featured Products page is
Template pages will each be a certain page type, depending on the page. For example, the featured products page is a listing page. There are separate FAQs for each of the pages in the storefront. Take a look there to find more information about a specific page.