Yes there was a time when Macs were very proprietary . That was a pain in the ass . It's completely different now . They can read PC files but PCs can't read Mac files . They have had to throw away that proprietary thing they so badly hung on too . Alot of it was Steve Jobs , he wanted Mac to be this completely seperate thing away from the business world and regular software . When he was fired , things got better , even though he is back , they don't listen to him as much .