> For the complete documentation index, see [llms.txt](https://docs.atfinity.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.atfinity.io/document-xml-adx/adx-elements/include.md). # Include The `` element allows you to include external ADX templates into your document. This is useful for reusing common template definitions (like headers, footers, or style definitions) across multiple documents. The included template is rendered and its defined `