http://www.iana.org/assignments/media-types/application/mathematica "All the necessary information in Mathematica notebooks is represented in text format, usually ASCII." Nautilus complains that a notebook's contents indicate it's a plain text document, and then refuses to let me work with it as a Mathematica notebook.
Created attachment 3163 [details] [review] Make application/mathematica a subclass of text/plain
Thanks, fixed.
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