Genio can generate a full Technical Documentation site for an application, which includes a dedicated section covering the Data Classifications defined in the model.
To generate it, go to Generation > Generate applications, choose the client to generate for, and under Schedule new generation set the Generation type to Technical Documentation, then click Generate.

The generated documentation site has a Data classification tab alongside the other model sections (Tables, Areas, Forms, Roles, Processes, etc.).

It contains:
Table.FIELD classified with it and its designation.This section only covers the Data Classifications and the fields associated with them — it does not include Processing Purposes, Default Behavior, or Role Behaviours. For that information, see WebAdmin Export.