.mmd file: how to open it on Windows

2 Windows apps register the .mmd extension. Install one of them to open the file with a double-click.

• 
  MarkText

  A simple and elegant Markdown editor focused on speed and usability.

  Open source 0.23.0 28.2K ↓ ★ 63K
• 
  Typora

  A markdown editor, markdown reader.

  Proprietary 1.14.15 120.1K ↓

Related guide: Change the default app for a file type in Windows