How do I access the Digital Mini Artbook and Digital Mini Soundtrack that’s included in the Digital Deluxe and Collector’s Editions?

The Digital Mini Artbook and Digital Mini Soundtrack can only be accessed through an app called the "Square Enix Digital Content Viewer". This app is included in the bundles granting the digital artbook and soundtrack: the Collector’s Edition, the Digital Deluxe Edition and the Digital Deluxe Upgrade. It will be downloaded automatically. If you have already downloaded the "Square Enix Digital Content Viewer", you can view the digital contents without having to download the app again.
Please note that an Internet connection is required to use the “Square Enix Digital Content Viewer” and access your digital contents.