The Model folder (test_Kgf-mm-sec) contains all finite element analysis definitions associated with the model.
The Property folder contains folders for solid, shell and beam property definitions.
The Material folder contains folders for isotropic, 2D orthotropic and 3D orthotropic material definitions.
The Study folders (test_modes_1, etc) defines the analysis type and contains loadcases and results.
The Loadcase (Loadcase_1,etc) folders contain loads and constraints and result sets.
The loads and constraints (Constraint_1,etc) can contain Application Regions (Solid 1.2, etc) which show what types of entity are contained within the loads or constraints.
The result set contains the output from the analysis of the study.