To see the scene, simply open your downloaded file in Blender.

Collections and Objects

In the Outliner, you'll see that everything in the file has been organised into Collections for performance and ease-of-use. The main scene is contained in the Drinks Bar Scene collection and is composed of collection instances of the various objects and props meaning you can move, rotate, and scale the props, but you can't edit meshes or materials.
To edit a particular prop, simply hide the Drinks Bar Scene collection, show the collection you want to edit, and you can now select and edit objects, meshes, and materials as normal:

Main Logo

The main logo, which appears as Café Nouveau in the screenshots here, is a .PSD file which you can edit to have your own logo or text appear on the mirror, the bar mat, the drinks tray, and the menu card.

Importing to your project

To use the scene, or props, in your own project:

• open your project
• click File -> Append
• browse to your downloaded file and click on it once
• click collection
• select the collections you want to import and click Append

You can now add collection instances to your scene with (Shift-A)Add -> Collection Instance -> the desired collection.