How to automate Microsoft Accessibility Checker using JavaScript or Python?

Question

Python

Good day!
There is such a task - there are 1000 different microsoft documents (word, powerpoint, excel), you need to automate the accessibility checker (in Russian translation "accessibility check" for people with disabilities).
That is, in essence, you need to: download the document, open it, run the accessibility checker, and save the result somewhere.

The first 2 steps do not cause me much difficulty, but calling this accessibility checker is the problem.
Question: how to call the accessibility checker using JavaScript/Python (JavaScript is preferred).

Personally, only one idea came to my mind - to do it through the web editor on the Microsoft website https://www.office.com. That is, to reduce the task to managing browser actions, and I can already do this (I hope I can) with the help of libraries such as puppeteer. But new complexities will be added here: authorization, searching for documents, etc., so I am convinced that there should be more direct and simpler ways to do this.

microsoft word accessibility checker example https://www.youtube.com/watch?v=q9vy9GE2gNs