.APPX File Extension
- Developer by: Microsoft
- Category: Developer Files
- Format: Binary
What is an .APPX file?
.APPX is Windows 8 App Package
App package format introduced with Windows 8; used by developers when packaging and submitting Windows 8 apps (formerly referred to as Metro Style apps) for sale on the Windows Store.
APPX files can be packaged with Visual Studio 2012, which provides support for developing Windows 8 apps. Use the Create App Packages wizard by choosingin Visual Studio or in Visual Studio Express.
APPX files can be included within .APPXUPLOAD files. Both file types can be used as a submission format to the Windows Store, but APPXUPLOAD files contain additional information that allows debugging information to be sent back to the developer for app crashes.
NOTE: APPX files have a 2GB maximum file size.