CXML is data exchange format for so-called "faceted view". It can be displayed by programs like Microsoft Pivot.
For best results, the result of the query should contain links to images associated with described data and follow some rules, described in the User's Guide.
This feature is supported by combination of four components:
As soon as all these components are installed, the SPARQL web service endpoint will add the "CXML" option to the list of available formats.