markitdown tool for using LLM more efficient

### Description of the new feature / enhancement

hi i just found this tool by microsoft it self name markitdown it helps in converting somany file type into markdown which a an effichent way to give LLMs using less tokes for the files. I am myself a puthon devloper and have litel technical know how, i am open to help in this, if there is any.

### Scenario when this would be used?

I have PDF docoment locally which i want any LLM like claude to have, i active this requested application of the power toys that will convert the that PDF in to mk(makrdown) formate so insted of givine the PDF i give that mk version to claude and now it will use less tokens.

### Supporting information

_No response_

Start with the linked Microsoft MarkItDown project and review PowerToys' existing utility structure; the issue names no file, test, or entry point. Define the integration scope and verify that a local PDF can be converted to Markdown for LLM use, with the finished behavior and validation documented.

Written by the indexing model from the issue text.