How to visualize the RING 4 output locally?

I have obtained the link for RING 4.0 download for linux. i have run it on a trial pdb file and two files were obtained:

step5_production.part0002_SOLU_noGLYCANS_r0.pdb_ringEdges
step5_production.part0002_SOLU_noGLYCANS_r0.pdb_ringNodes

But I dont know how to visualize these files.

Can you help me?