This (and your comments) seem very interesting, but after reading through the glossy web pages, I honestly can't quite get a bead on what this really does. As

This (and your comments) seem very interesting, but after reading through the glossy web pages, I honestly can't quite get a bead on what this really does. As for background, I've been deeply technical, on the back end/server side since the beginning. It says I can upload a CSV. What would be in the CSV? One row per sale, for instance? Does it then do a bunch of magic to, among other things, trend that pile of data? Thanks in advance!