If extended file types have been enabled in the "&xwp; Setup" object, &xwp; replaces the original "Types" page in data file settings notebooks with an enhanced version.

See "Types and associations" for an introduction to associations between data files and programs.

This page displays all file types in a tree, as they were defined on the "File types" page in the "Workplace Shell" object. As opposed to that page, each file type on this page has a check box next to it which determines whether the data file has that type currently set.