MIME> add myfile.txt
This would add the file "myfile.txt" with the default settings
specified by the program and also any found in the file
MIME$FILETYPES.DAT file. The current default settings for a text
(.TXT) file are: the content type set to "text/plain;" with a
content type parameter of "charset=ISO-8859-1" and an encoding of
"7bit/8bit". Use the SHOW FILE_TYPES command to display the list of
file types and their settings.