Not everything is Windows
AFAIK OSX, like Linux, uses mime types to determine which program to open a file with. The file extension is just there for the benefit of the meatbag at the other end of the keyboard. It is not guaranteed to be accurate.
AFAIK OSX, like Linux, uses mime types to determine which program to open a file with. The file extension is just there for the benefit of the meatbag at the other end of the keyboard. It is not guaranteed to be accurate.