mlx script ECMA-376 (OOXML) can't be opened by MS Word/ or LO

Hi,

I just learned from https://www.mathworks.com/matlabcentral/answers/271483-what-is-the-live-script-file-format-mlx-can-i-look-inside-it?s_tid=gn_loc_drop

that The file format uses open standards -- it is not MathWorks proprietary. It is an Open Packaging Conventions file (like the Simulink model .slx format), which is by definition a .ZIP file that you can open with any tool and whose contents you can see. The file "document.xml" within the .ZIP contains the MATLAB code and rich text, and also follows an open standard format, ECMA-376 (OOXML). The file "output.xml" contains a serialized version of the output. Images, if any, are stored as additional separate parts. See the “Live Script File Format” documentation topic for more information.

unfortunately nor MS Word or Libreoffice which support these formats (or in case of MS Word should) don't open the file.

I tried to rename it as docx. No sucess.

What is then the benefit of this format? wouldn't the LO XML standard by the better choice? what do I miss?

thanks

Uwe Brauer