Enterprise Forms 5.0 now provide direct support of form data instances in XML format in addition to the already supported formats of Excel and CSV. 

The XML file is compatible with the standard .NET XML datatable structure which means that the file could be imported directly to an external .NET application for usage and manipulation.

Currently, form data export is available from the Workflow Manager and Report Manager modules.  In the Workflow Manager module export is available only when in single-template mode.  Whereas in the Report Manager module data export is available when "Allow Export" property is enabled through Manage Report Settings screen

The above image shows the available Export options in the Workflow Manager module

The above image show the Allow Export options from the Manage Report Settings screen