Topic summary
APPX
Extracted from the Wikipedia article Universal Windows Platform apps.
APPX
APPX is a file format used to distribute and install apps on Windows 8.x, 10, 11, Windows Phone 8.1, Windows 10 Mobile, Xbox One, Xbox Series X|S, HoloLens, and Windows 10 IoT Core. APPX was originally the only installation system allowed for UWP apps, replacing the XAP file format on Windows Phone 8.1, in an attempt to unify the distribution of apps for Windows Phone and Windows 8. APPX files are only compatible with Windows Phone 8.1 and later versions, and with Windows 8 and later versions.