How to generate doc/excel from HTML form?

Question

Python

You need to make a web form, some of the fields from which will be sent to the database, and some will be used to generate a document with a table in doc/excel. The question is how to do it.
How to map data from a table to specific places in a doc/excel document?
In what language is it easier to do this? I have some knowledge of Python and C#.
Are there any semi-finished solutions?

Answer 1

docx can be generated directly on the client
https://github.com/edi9999/docxtemplater