My husband has a Sony A7R Camera. Which we recently used on our honeymoon. He has been trying to transfer them on to his laptop only to find they are in an. ARW file which he can not open to view or edit 

He found a convertor programme but the pictures open and appear to have a blue/green filter. He has now found he has to share them on his phone then transfer to his laptop. Surely there is an easier solution to this? 

If anyone can help it would be greatly appreciated 

Many thanks

Dominae