Prism XML style sheet and schema that define the pzfx format.

Geek alert. If you don't know what schema language for specifying and validating XML documents or stylesheet are used for, these files won't be helpful.

These files may help you understand how Prism organizes PZFX files.

For XML schemas, Windows Prism uses XML-Data Reduced (XDR)  format while Mac Prism uses "W3C XML Schema".

This zip file contains style sheets and schema for both Windows and Mac, with separate files for Prism versions 6, 7 and 8. For Prism 5, here is the schema and style sheet.