Hey.

Could You Guys plz help a bit.
Lets say, im new to scryptocurrency (im not, but Ether:))


Could someone explain me ('step by step' is preferred):

How to get my ETH-s from a JSON file ?
How to send (deposit) them to an exchange ?

I've purchased some on presale a while ago and now im about to sell them... (i have ONLY a "json" file !)

Detailed "How to" is WELCOMED !