.INMS File Extension
File TypeAdobe InDesign Menu Set File
What is an INMS file?
Settings file used by Adobe InDesign, a program used to create professional page layouts; contains the hide or show settings for menu items, as well as the location of the menu items; used for customizing the user interface.
NOTE: The default menu set cannot be modified. Instead, save a copy of the default menu set as a new INMS file and then modify it.