Definitions for "Message file"
A configuration file that maps message text to message identifiers. Panther messages are stored in the message file to enable customization (e.g., for international use). User messages may be included as well. The message file also contains date, time, and numeric format specifications that can be customized.
a file that is displayed when a particular action occurs
a plain-text file, representing a single language, that contains all available translation strings and how they should be represented in the given language