The Language menu of the Tabbed Scripting Editor contains commands for switching language-specific settings, such as syntax highlighting, indentation width, and indentation characters, between the currently installed modes:
Text(SHIFT+F11) - no syntax coloring
MAXScript - default for .ms and .mcr files
Python - default for .py files
Resources - default for .res files
Properties - default for .properties files
Hypertext - default for HTML files
XML - default for XML files