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The "_mac", "_nix" and "_win" suffixes correspond with the operating systems Mac, Linux and Windows and the "11,1,0,0,0,0,Lucida Grande" portion is just the font size followed by some boolean values for whether or not the font will have bold, italized, underlined, strikethrough formatting respectively (the sixth value changes the font entirely and I didn't dig too much into the usefulness of that), then of course there's the font name (which you can change to any installed font if you wish).
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Very helpful and works for Maya 2014 and 2015. Thanks very much.