Teams Channel Files Tab are getting a new look and many new features. Closing the gap to having nearly all the features that are available in SharePoint, in Teams. – and will begin rolling this feature out soon. This new Xperience(Gradually rolling out June 2019) in the file tab of a channel includes the ability to sync files to your computer, more view options such as grid layout, and life-cycle signals. Additionally, you can pin and check out files. These are just few of the new features, objective is to have coherence with SharePoint and make it easier for users to use their files in Teams.