mkdocs: how to attach a downloadable file

I have a mkdocs project that resembles the following:

project
├─mkdocs.yml
├─docs
│ ├─home.md
│ ├─chapter1.md
│
├─static
  ├─file.ext
  ├─image.png

I am trying to find a way to "attach" file1.ext to the build, for instance as a link in chapter1.md.

Any suggestions how to achieve that? Detail: I want the file to be downloadable on click.

In mkdocs, to get the file to be downloadable on click using markdown, first you need to add this to your mkdocs.yml file :

markdown_extensions:
  - attr_list

and then in your chapter1.md you can add download attribute to your link ... like so :

[file.ext](../static/file.ext){:download}

Heck you can even specifies the new filename for the downloaded file:

[file.ext](../static/file.ext){:download="awesome-file"}

Explanation

MkDocs converts Markdown to HTML using Python-Markdown which offers a flexible extension mechanism, which makes it possible to change and/or extend the behavior of the parser without having to edit the actual source files.

The markdown_extensions in mkdocs.yml setting specifies the Python-Markdown extensions for MkDocs.
adding attr_list entry point enables the Python-Markdown attribute lists extension, which adds support for HTML-style attributes using curly brackets {} and a CSS-like syntax.

example:

let's say we want to open a link in new tab, we can achieve this like so :

[Google](https://www.google.com){:target="_blank"}

Edit:
Check the answer by @WaLid LamRaoui

Original:
Fixed it with:

// in chapter1.md
<a href="../static/file.ext" download>file.ext</a>

the mardownish like did not work:

[file.ext](file::///../static/file.ext)

In your chapter1.md file you should link your file1.ext, this file should be located in the static folder.
You can link it like:
[Link to file1](../static/file1.ext)
After this you can build your project.

Place the file in the static directory:

1. Move or copy the file.ext to the static directory in your project structure.

Project
  ├─mkdocs.yml
  ├─docs
  | ├─home.md
  | ├─chapter1.md
  |
  ├─static
    ├─file.ext
    ├─image.png

2.Update your markdown file (chapter1.md) to include a link to the file:

In the chapter1.md file, you can add a Markdown link that points to the file you want to attach. For example:
[Download File](../static/file.ext)

3.Adjust the file path ../static/file.ext according to your project structure and the actual location of the file within the static directory