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CUIX CUI
File conversion

Convert CUIX to CUI

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Is it possible to convert CUIX to CUI?
Yes - CUIX converts to CUI.

CUIx is the successor of the binary .cui format. AutoCAD automatically converts .cui to .cuix when loaded. No manual conversion needed - simply open the old .cui in AutoCAD 2010+.

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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How to convert CUIX to CUI

Converting a .CUIX file to .CUI lets you open the content in software that prefers the .CUI format, though some details may change compared with the original. We are still putting together the list of programs that handle .CUIX files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.CUIX AutoCAD Custom User Interface File

A CUIX file is an AutoCAD customization package that defines ribbons, toolbars, menus, and keyboard shortcuts. Open it by typing CUIED in the AutoCAD command line. Do not delete acad.cuix -…

Open .CUIX details →
.CUI AutoCAD customization file

A .CUI file is associated with AutoCAD customization, a settings file.

Open .CUI details →