How to open CUI files

Did your computer fail to open a CUI file? We explain what CUI files are and recommend software that we know can open or convert your files.

What is a CUI file?

The CUI file extension indicates to your device which app can open the file. However, different programs may use the CUI file type for different types of data.

We are aware of 1 different use of the CUI extension, which you can read more about below.

AutoCAD Custom User Interface

Through our analysis of CUI files, we know that one use of the format is AutoCAD Custom User Interface. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

Software that will open, convert or fix CUI files

These apps are known to open certain types of CUI files. Since many different programs may use CUI files for different purposes, you may need to try a few of the apps to open your specific CUI file.

Parallels Tools CenterParallels Tools CenterUser submitted
We have not verified any programs that we know for certain can work with CUI-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with CUI-files. If you know one, please use the Suggest link below and tell us about it!