…just to correct the above Mac/PC talk. Macs do use extensions. Just because you probably have them turned off or because the extensions (such as .dfont, .ttf, etc.) don’t show on all fonts doesn’t necessarily mean they aren’t there. File association is integral to all operating systems. And I wouldn’t call a PC stupid. PCs have caught up/passed Macs in many areas and both operating systems still steal good features from each other. Use whatever is best for your situation at hand, but to have such a strong loyalty can hinder your abilities.