In the archive in the skipped file there are 5 elementary models (1 or 2 cubes with different boundary conditions) in the Workbench project and absolutely the same in ANSYS APDL. You need to do the same in HyperMesh with the “Optisrtruct” template (when starting HyperMesh, the type of solver - template is selected). (one to one ... the same cubes sizes ... and the same or equivalent boundary conditions so that the results differ minimally ... etc.).
If you also understand the ASCII text * .fem file for Optisrtruct, then there will be more tasks.
There are 5 models in the archive. It would be very nice if, as a first step, you tried to make the simplest model. Would compare the results of calculations in Ansis and Optixtract. Then it would be immediately clear to you and me whether you succeed in completing this project or not.