Available formats: .blend, .obj, .3ds, .fbx, .dae

Four texture sets are available :

1. PBR_Met_Rough   
2. PBR_Spec_Gloss  

3. UE4

4. Unity
   
   

Though I am not sure that  normal map will work perfectly for UE4. I just exported it from Substance Painter using UE4 preset.

High and Low poly fbx is available in High_And_Low folder. Size do not mach to the rest files and twigs is in different position, but it will work for purposes of rebaking and texturing.