1. First download Emerald Wallet to your computer and open it. To start using Emerald, download it here: https://emerald.cash/download
2. Because you may have already created an Ethereum account using your JSON file, you will see that wallet on the Emerald home.
3. To create a new Ethereum Classic account in a new wallet go to the menu on the top right of Emerald.
4. Of the 4 menu options press "Create wallet".
5. In the next screen you will see 6 options to create wallets. Press on "Import existing Private Key JSON file".
6. In the next step Emerald will ask you to name this new wallet. This is because you may have many wallets inside Emerald. When you label your wallet, press "NEXT".
7. In the next step Emerald will ask you to upload your JSON file from your computer. Press on that area.
8. Select your Private Key JSON file from your computer.
9. In the next screen, you will see that Emerald has recognized your account. Also, that it's the same one as Ethereum if you created one for that blockchain. This is because Ethereum Classic is compatible with Ethereum. In this step you have to enter your Emerald password and the password to your JSON file. Then, press "SAVE" and "NEXT".
10. Now, Emerald will ask you to enable the blockchains you wish to use in this particular wallet. Because we are going to set up ETC, then we select that blockchain and press "NEXT".
11. And voila! Your new wallet with an ETC account has been created! Emerald will show you the wallet ID, but that is just for identification purposes because you can have many wallets inside Emerald. No need to write it down. Press "OPEN WALLET" to go to your new wallet.
12. Check out your new wallet with an Ethereum Classic account. When you see your wallet you will notice that the account in ETC is the same as the account in your ETH wallet. This is because we used the same JSON file and both networks are fully compatible. You will see ETC is enabled for this one and the name at the top.

Thank you for following this tutorial!