I like to play games of Magic solitaire to test my decks (particularly Commander games, but the same would apply to any game). I also like to share the raw data from the game with my friends. Currently, I simply record the state of the game, transcribe it, and send it - but that requires them to keep a constant mental image of the entire game, including hand contents.
Naturally, using a computer program for this would reduce the mental burden. But if I'm going to do that, I really need to have a file format I can send the game files in. So my question is... is there a standardized file format for describing the events of a Magic game? Something like what PGN does for Chess, but for Magic.