Converting HTML to MJML?

I'm new to MJML and I'm wondering if it's possible to convert HTML to MJML? I've tried searching for answers but the results are always the opposite.

Can you convert HTML to MJML?

You can only manually "convert" HTML to MJML. Basically, that means you write MJML code that produces specified HTML output.

How do I export HTML from MJML?

To Reproduce Create a file with this MJML code and french words with french characters (for exemple é, è, ï, etc.) Render it to HTML by doing CMD + MAJ + P and MJML: Export HTML.

No, it is not possible.
I guess your question is, "Is it possible to convert HTML to MJML automatically? Is there any tool for that?"
That is not possible. As far as I know, there is no such tool.

You can only manually "convert" HTML to MJML. Basically, that means you write MJML code that produces specified HTML output.