Hey Jim,

Yes, the .pp2 files are unique to PingPlotter - however, an image will often suffice in these scenarios (and I'm sure the folks over at Comcast have seen more than a few examples of PingPlotter results by now). You'll find a few screenshots from your results attached to this message - which you're free to use when communicating this issue to your provider.

Something to remember as you prepare to reach out to Comcast - in addition to the screenshots/PingPlotter data; it's always a good practice to have a clear description of your issue ready, and be ready to communicate the impact this problem has been having on you. We have some more tips/tricks that can really help make this point in your process a bit easier (as well as faster and more productive) in our Roadmap to Network Nirvana (http://www.pingplotter.com/netnirvana).

Hopefully this has helped out!

-Gary