Yaks

Dear All,
I want to export a Tetragrid file into Abaqus for FEM calculation.
I used an Avizo example file, motor.tetragrid.am (none of mine was successful). In the available options, I can only save with AVS UCD to get *.inp. I saved the file as motor_tetragrid_binary.inp file (later as ascii).

Upon importing the model, the Abaqus viewer is blank. I get this message:

The model "motor_tetragrid_binary" has been created.
WARNING: Empty part PART-1. This occurred while reading keyword options within part definition.
WARNING: Part instance PART-1-1 references an empty part. A new part named PART-1-1 will be created from the mesh data in part instance PART-1-1.
WARNING: Empty part instance PART-1-1. This occurred while processing part PART-1. Neither the original part nor the part instance PART-1-1 contain mesh data.
The model "motor_tetragrid_binary" has been imported from an input file.

How can I get the Avizo tetragrid file into Abaqus for FEM analysis? Many thanks.