How do you erase a saved file on Pokemon Platinum?

If you want to erase a save file on Pokemon Platinum, while in your game, try to save on the game that you are playing. If you already have a save file, it will tell you how to erase your save file. Keep checking back, and I can figure out a better way.

Thanks, and enjoy!

-PocketFroggys (with help of TurtwigPrinplups)