What is the structure of the InfoPath form data?

The structure of InfoPath form is .XML and .XSD file defines the format of data in InfoPath form. XSL file defines the transformation of the data into different views. A manifest(.XSF) defines the definition of other forms of files.

An InfoPath form template is actually a CAB File containing different component files. Below is a list of files which forms part of an InfoPath template. .xsf file: A manifest file that describes the basic definition of other form files. .xsl file: Defines the transformation for data into different views. .xsd file: Defines the data source schema. .dll file: Carries the custom logic built into .NET or COM. .htm and other resource files: Custom HTML resource files and other resources for the form.