File name extensions

[Mark Schonewille]

Hi Marty,

There are no official lists of file extensions. You are free to use  
whatever you want. The creator type registration at Apple is a relic  
from the past and you're free to ignore it, but I still think it is a  
good thing to register your new creator types there and to adhere to it.

I often use 4-character file extensions to reduce the probability that  
the file extension is widely used by a different application already.  
Whatever 3-char combination you choose, someone has probably already  
used it.

--
Best regards,

Mark Schonewille

Economy-x-Talk Consulting and Software Engineering
Homepage: http://economy-x-talk.com
Twitter: http://twitter.com/xtalkprogrammer

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Op 22 jan 2010, om 19:45 heeft Marty Knapp het volgende geschreven:

> I'm working on an application (Mac only at the moment) and was  
> wondering about file name extensions. I poked around and found web  
> sites that list file name extensions, but is there someplace  
> "official" to register or search? Or am I free to use whatever I  
> want? I registered a creator code with Apple, but don't know what to  
> do from there.
>
> Thanks,
> Marty Knapp