.appx file: how to open it on Windows

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

About the format

Format

Windows app store package

MIME type

application/appx

Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).

• 
  MSIX Commander

  A toolkit for MSIX packages, with multiple nice features for packaging engineers.

  Other licence 1.0.7.5 ★ 41
• 3
  360 Zip

  Free, security, high-speed compression software

  Free 1.0.0.1041

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