Customization (CUIx) files are used to store commands, user interface elements, and references to partial CUIx files and AutoLISP files. CUIx files can be designated as main, partial, or enterprise.
Customization files are loaded into AutoCAD to define elements that make up the user interface and are edited using the Customize User Interface (CUI) Editor.
Create, load, or unload partial customization files as you need them. Loading and using a partial CUIx file allows you to create and modify most user interface elements (toolbars, menus, ribbon panels, and so on) in a separate CUIx file without having to import the customization to your main CUIx file.
An enterprise CUIx file typically stores customization information that is shared by many users, but is controlled by a CAD manager. Enterprise CUIx files make maintaining and modifying customization data easier for the individual responsible for controlling company standards.
You can search one or more CUIx files for commands or search strings (including commands or user interface element names, command display names, descriptions, macros, and tags). You can also replace commands or search strings one at a time or all at once.
