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CUI file extension

The table below provides useful information about the .cui file extension. It answers questions such as:

  • What is the .cui file?
  • What program do I need to open a .cui file?
  • How can the .cui file be opened, edited or printed?
  • How can I convert .cui files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Autodesk AutoCAD Custom Workspace

Autodesk AutoCAD Custom Workspace .cui file icon
CUI file is an Autodesk AutoCAD Custom Workspace data. With the Customize User Interface (CUI) Editor, you can create and manage standard and custom commands and user interface elements. By customizing the user interface, you can arrange and access the commands that you frequently use. You can also extend AutoCAD by creating your own custom commands.
Application: AutoCAD CUI Editor
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CUI aliases:
CUI related links:
CUI related extensions:
Autodesk AutoCAD Drawing

Autodesk Drawing eXchange File

WorkView3D Links

IronCAD Scene

Autodesk Design Web Format

Autodesk AutoCAD Heidi Information File

Autodesk AutoCAD Heidi Device Interface

Pro/ENGINEER Neutral Assembly

Cadence Allegro PCB Layout

Catia Document

Other types of files may also use the .cui file extension.

🚫 The .cui file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

chi, ci, cii, cki, cu, cuj, cul, cuo, cyi, sui, uci, ui, vui, xui

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Petrosys Culture Data
CU-SeeMe Data
Intergraph CAESAR II Data File
Gimp Plug-ins UI Data
C To Haskell Interface File
CUDA Object
1C:Enterprise Configuration Update Data
Off by One Web Browser Cookie Data
Visual Navigation Suite Exported Settings
CUHP Input Data

🔴 Can't open a .cui file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .cui file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .cui file extension, write to us!

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