you can't
Chat with our AI personalities
I dont think there is a way to erase data but you can create other sims and save them in the file of a sim you dont want anymore
On the start screen, press the button combination UP+SELECT+B. This will prompt an erase data screen.
There is no dragonvale for PC
save one on the one you want to erase then when its saving turn off the power. Sadly this happened to me. :( ...
press up select and b together