Restore Dogecoin Wallet from backup

I've backed up my Dogecoin wallet onto a 256mb SD card and I would like to restore it to my Macbook, however I cannot figure out how to do it.

 

I've searched Google for a guide on how to do it but it's all for Windows. Anyone know how to do it for Mac? I've got around 15000 Dogecoins in this wallet and I would hate to lose it all.

If somone does not answer you here I would suggest posting this on a crytocoin forum