
Originally Posted by
DrByte
You're looking for a simple "look here" answer when there is none.
Checkout uses:
/includes/auto_loaders/*
/includes/classes/*
/includes/extra_cart_actions/*
/includes/extra_configures/*
/includes/extra_datafiles/*
/includes/functions/*
/includes/init_includes/*
/includes/languages/english/*
/includes/modules/pages/checkout_xxxxx/*
/includes/templates/YOUR_TEMPLATE/templates/checkout_xxxxx*
/includes/templates/template_default/templates/checkout_xxxxx*
/includes/templates/YOUR_TEMPLATE/common/*
/includes/templates/template_default/common/*
and more
NOTE: all "*" references above include all files and folders and files inside any subfolders