From the Overview page, you can click View to open the file and view it in the A360 viewer. The A360 viewer has several tools and options that allow you to take a closer look at a design as well as review the design.
The image below gives a snapshot of the viewer and a high-level introduction to the different tools available in the viewer. Depending on the type of file you are viewing, options on the top right and left corners, and tools along the bottom will change.
You can click the tools on the left to drill down further into your design or model and you can search for parts using the search tool in the model browser.
See image below of A360 Viewer and the different tools and options you can use to view and review a design.