This is the account.dat file that is in your save file. It has the following:
-Gem crafter 10 (with all gem plans learned)
-600+ Hellfire ring materials
-300+ Infernal Machines
-Infernal Staff of Herding
-Pre-order items (might be in there not sure if I stashed them or not)
THIS IS NOT A CHARACTER!!!
If you don't want to lose stuff in your stash then put it in a character's inventory!
This will change your challenge progress but I have been working on completing all the challenges (it takes time)
Like if you use this and feedback please
EDIT: This will let you keep your characters and become paragon 100