I have always used a Dell PC which is nearing it's end. I would like a Macbook Air. I back all my files, photos etc to two external Iomega hard drives. Will I be able to transfer those files from the hard drives to the Air? I am used to using file explorer on the PC and hard drives, and copying files across, but am I right in thinking I won't have a file explorer on the Air? If anyone can advise me, I'd be grateful.