i actually might just do this because i like the idea of being able to slaughter a whole army by myself in a video game
Don't boost Agility too high; as you can see in my file, for me it's 777. It controls character movement speed, and if you set it at 999999, movement becomes far, far too fast to be at all practical.
Even 777 is pushing it; I can run much faster than the fastest horse.
And the max of experience points is 644045999.
Max attributes I'm not sure, but max skills is 10.
Max weapon proficiency is 699.
Also, this process can be repeated as many times as needed, simply overwrite the export file each time.