Beginner. Voronoi Cube.

[Neon22]

FWIW if you can load the object into FreeCAD (try obj format) and then goto their meshlab tab - you can "create mesh" and choose netgen as engine. Then select and export as say STL or obj again.
This will generate the voronoi shape you're looking for. (Used for FEM analysis).

However it won't be a wings model and you may have connection issues with dangling edges etc. I don't know for sure - I hope it will work for your model.