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XAP APPX
Not possible

Convert XAP to APPX

Can you convert XAP to APPX?
QUICK ANSWER
Is it possible to convert XAP to APPX?
No - not a direct conversion.

No converter turns a XAP into an APPX/MSIX. They are different packaging models (Silverlight/WP7 vs UWP); migrating an app means rebuilding it from source for UWP, not repackaging the XAP.

No direct path
Also to APPX: WAPPROJ

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Converting XAP to APPX

A .XAP file and a .APPX file hold different kinds of data, so there is no direct way to turn one into the other.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.XAP Silverlight / Windows Phone Application Package

A XAP file (pronounced "zap") is an old Microsoft application package for Silverlight web apps or Windows Phone 7/8 apps. You cannot run it today - Silverlight reached end of support on…

Open .XAP details →
.APPX Microsoft Windows App Package (AppX)

An APPX file is a Windows app installation package introduced with Windows 8. On Windows 10/11, double-click it and the built-in App Installer handles it, or run Add-AppxPackage -Path…

Open .APPX details →