Blender.org

I have started blender again recently and was browsing through some collections at blenderswap. When I opened up the file and click armatures to view the bone structures and rigging there appeared to be none. Under the display tab I had turned on the key features to view the structure but to no avail. Why can I not see the rigging?

The blenderswag animation file is called Injured Man walkcycle by Kiopaa.