I was playing around in Excel and the conditional formatting features are pretty awesome compared to what 2003 had. Seems like it could be a cool way to scroll through your log data.
Example - Part of a 3rd gear stomp on the gas merging onto interstate. Looks like modeled EGT goes up very quickly, possibly causing the ignition timing retard? Lambda goes rich. Blah blah blah pretty colors and shit.
Huge screenshot:
http://i.imgur.com/1JVTq.pngRandom idea. Looks cool though. Maybe someone will get some ideas from it.