This is the official manual for the latest Org-mode release.
On top of the aforementioned back-ends, Org comes with other built-in ones:
To activate these export back-end, customize
load them directly with e.g.,
(require 'ox-texinfo). This will add
new keys in the export dispatcher (see The Export Dispatcher).
See the comment section of these files for more information on how to use them.