Although intended originally for HTML export, and still labelled as such, HTML view is the primary method for export, whether using HTML, OPML, XML, tab-delimited or CSV text, etc.
Unlike plain text export, the scope of the export view is always the currently selected note. The scope of what a given note exports can be varied by using includes, allowing for a powerful export interface although it can be daunting at first sight.
Each note can be assigned an export template or use the document's default preference. These assignments can be bypassed by includes and use of recursing 'envelope & letter' templates.