Converting Abaqus output to vtk, hdf5 or op2

Hello, I use the Simulation Manager Web App to run ABAQUS modal analysis simulations from an input file. To compare the results with other results generated by Nastran, I need the outputs in one of the formats: VTK, HDF5, or OP2. Unfortunately, I have not been able to find a way to generate outputs in these formats yet  but only in the formats ODB, SIM or FIL. Does anyone know how to achieve this? Thank you in advance. Joachim