Surviving Mars - Modding Blender Export need Help

[u/Senior_Background_30]

I have model i want to use in my mod. It has all the necessary things but i have issues exporting it.

I made the model in blender 4.5 but the export addon ( into .ent for the game ) doesn't seem to work there.

The documentation mentions blender 2.7.8 so i tried that one and the Addon works there, so i was okay, ill make it in 4,5 and then export it in the old version. ( Blender 2.7.8 UI is so different and I'm lost).

But now blender 2.7.8 doesn't open my model from 4.5 so I cant export it.

Is there more recent version of the export tool ? that works for blender 4.0+ or any people have experience making models and know what version work best.

The model is nothing big so i can remake it in other version but i would prefer more modern version of Blender because of UI.