To Link/Append to your scene:

1. Extract zip file to the desired folder.

2. Open blender.

3. Go to File -> Link or Append (whatever suits you better).

4. Browse to where you extracted the blend files and select Future_City_Pack.blend

5. Within the blend file select the object folder and switch to Thumbnail Preview to see image previews for all the models.

6. Select the one that suits you or all together and press Link/Append from Library.

7. Happy Blending!

To activate the Night Lights:

1. Select any one of the buildings in the pack.

2. Go to the materials tab.

3. Select the Internal Night Light Material.

4. Go to the Shader Editor.

5. Connect the Lights On node to the Material Output node.

6. Watch the city light up!

Note: Materials are made for Cycles and (for the time being) are not compatible with EEVEE.

Note: Objects are in real life scale (length: Kilometers) so depending on the units in your scene, you mights need to scale down the assets after importing to view them properly.