Unreal Engine 4 assets inside Unity 5

Can i use Unreal Engine 4 Assets inside Unity 5, and if yes how to use it? Thank you

in general, if the asset is of a type unity can import, yes, out of the box. If not, you probably need to write your own binary importer.

If you use my tool : Exporter for Unreal to Unity - Lite | Integration | Unity Asset Store you can export an unreal level to unity. It can export materials, textures, static meshes, lights, vertex colors, LODs, collision shapes, foliage, reflection probes.

You can use it, but you can encounter dozens of errors. I certainly do not recommend that you do this, because it will be very difficult to deal with the mistakes that will arise.

Example https://www.gameplaydeveloper.com/unity-vs-unreal-in-the-gaming-industry/

Because it contains advanced and new features, as described in this content, transferring to Unreal Engine 5 will result in bad results.