A zpt file extension can create dynamic xml file. It is originaly associated only with Zope. Those files are now used for many applications.
There is one other file type using
the ZPT file extension!
.zpt - Zoner Photo Studio template
ZPT file extension - Zope page template
What is zpt file? How to open zpt files?
File type specification:
The zpt file extension is used for creating dynamic XML, a page template is itself an XML file built around a handful of namespaces including TAL, TALES, METAL, and I18N.
Originally used only with Zope, page templates are now being used with several applications.