Blender

1) Unzip the .zip file using any zip file archiver and compressor (e.g. 7-Zip, Hamster ZIP Archiver Archiver).

2) Start Blender and open the unpacked file named Blender_Head_02.blend.

Additional resources: 

1) Archive "texture_ninja02" 

Unzip "Texture_All". All textures with a resolution of 4k, 2k, 1k are stored here... 

- Unreal Engine-Texture pack.

- Base_Color, Ambient_occlusion, Height, Normal_OpenGL, Roughness, Specular,Scaterring and others;

2) fbx, obj - formats for exporting the model to other programs or game engines.

Demo scene with customized materials in Marmoset Toolbag 3:

 3) Archive "Marmoset_Toolbag_3_Scene_Head02"; 

Unzip" Marmoset_Toolbag_3_Scene_Head02" and open the program Marmoset Toolbag 3. Start the scene "Render_Head_02";

All materials and textures are configured in the scene for demo rendering or animation export.You can see the purpose of textures and the correct configuration of materials.