In the Blend file go to "File > External Data > Find Missing Files" and choose the textures folder. This will find all of the missing textures within the textures folder.

Cycles.

Blender 2.82.

This collection could be in a project where you need a shelf. There are 3 different shelves which makes it easier to decide where to use them. They could be used in the background of a scene, or a level in a video game. An example of a scene could be a warehouse where you need to store a lot of inventory.

If you are using a Mac you can try following this guide: https://www.youtube.com/watch?v=6--dQQ9U1fs

If you are on Windows you can try using 7Zip to extract the files as that is what I used to create the archive.

If you are still having problems unzipping the archive please contact me as well as letting me know what operating system you are using.