The file naming convention is just something we have used in previous games to keep track of turn order.
BTW, the turn number at the end of the file name should go 001a, 001b, etc. When the second round of play starts, the turn number at the end of the file will go 002a, 002b, etc.
I think the best thing to do is just restart the game with the same turn order. We're not that far in. I will regenerate the game start.
To his dog, every man is Napoleon; hence the constant popularity of dogs.