enable 3d view tab

Hello,

I am trying to do the tutorial on "SolidWorks MDB overview" and after you open the assembly in says to "Click the 3D views tab at the bottom of the SolidWorks window". I don't see any 3D views tab and I have searched through tons of settings to see if I can enable it somehow and have found nothing. Can someone help me with this? Thanks!

SolidworksAssemblies