---
title: "How to Open a .md File on Windows"
description: "Learn how to open, read, and edit .md files on Windows with MarkPad++, then set it as your default Markdown app for easy access."
slug: "how-to-open-md-file-on-windows"
image: "images/how-to-open-md-file-on-windows.png"
image_alt: "A Markdown source page unfolding into a clean formatted document"
date: "2026-09-16"
updated: "2026-09-16"
category: "Guide"
tags: ["Markdown", "Windows", "md files", "Reader mode"]
order: 1
---

# How to Open a .md File on Windows

You download a guide, open its folder, and find a file called `README.md`. A double-click brings up a question from Windows: which app should open it?

You only wanted to read the instructions.

A `.md` file is usually a Markdown document. You can open it directly on Windows, and **MarkPad++** gives you a simple way to read it with its formatting in place. Open the file, press **Ctrl+E**, and get on with reading.

## What is inside a .md file?

Markdown is plain text with a few formatting clues. A `#` at the beginning of a line can turn it into a heading. Two asterisks on each side of a word make it **bold**. A line starting with a dash can become a bullet point.

That is why a Markdown document sometimes looks a little unfinished in a basic text editor: you are seeing the formatting instructions alongside the words. A Markdown reader puts those instructions to work and displays the finished page.

You will come across `.md` files in software guides, meeting notes, writing drafts, and all sorts of documentation. You do not need to learn the symbols just to read one.

## Open it in MarkPad++

Once you have installed [MarkPad++](https://openmdfiles.download/), opening your first document takes three steps:

1. Launch the app and press **Ctrl+O**.
2. Choose your `.md` file.
3. Press **Ctrl+E** to switch to reader mode.

Headings, lists, tables, and links now appear with their formatting applied. You can also drag a file straight from its folder onto the MarkPad++ window.

Suppose you are reading a project guide and spot a note you want to change. Press **Ctrl+E** again, edit the text, and save with **Ctrl+S**. Switch back to reading when you are done. MarkPad++ keeps your place as you move between the two views, so you can carry on from the section you were working on.

That small back-and-forth is handy for your own writing, too. Draft a few paragraphs, see how they read, then return to the words.

## Make the next file a double-click away

If Markdown files start turning up regularly, make MarkPad++ their default app. In Windows, go to **Settings > Apps > Default apps**, find the setting for **`.md`**, and choose **MarkPad++**. Depending on your Windows version, you may need to open the list of defaults by file type. [Microsoft’s default-app guide](https://support.microsoft.com/en-us/windows/apps/change-default-apps-in-windows) shows the available options.

The next time you double-click a Markdown document, Windows should open it in MarkPad++.

Working through several files? Drop them onto the app together. Each gets its own tab, so you can keep a guide open while checking your notes. And if you prefer a darker page while reading, you can switch between the built-in light and dark themes under **View > Theme**.

## What about Notepad?

Notepad can open Markdown files, too. Right-click the file, choose **Open with**, and select **Notepad**. Older versions show the plain text; newer Windows 11 versions can include [basic Markdown formatting](https://blogs.windows.com/windows-insider/2025/05/30/text-formatting-in-notepad-begin-rolling-out-to-windows-insiders/), depending on the version and settings.

For an occasional glance, that may be enough. MarkPad++ becomes especially useful when you want to move between reading, editing, and sharing the same document.

For example, if someone asks for your notes as a PDF or Word file, **File > Export** creates a copy in the format they need. You can keep working in Markdown while sharing something familiar with everyone else.

Start with the file you already have. [Open it in MarkPad++](https://openmdfiles.download/), press **Ctrl+E**, and settle into the document.