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(Windows Store App Backup) is a third-party utility created by developer Kiran Murmu . It is primarily used to back up, repackage, and resign APPX and MSIX files—the packaging formats for Microsoft Store applications—allowing users to sideload them onto other Windows devices. Core Functionality

It helps users install Store apps on systems where the official Microsoft Store may no longer be fully functional or accessible. App Preservation:

: It allows users to unzip an existing app package, modify files (such as the AppxManifest.xml to change supported architectures or visual elements), and then repackage it into a valid Appx package .

wsappbak /backup /target <path> [/package <fullPackageName>] [/noprogress] [/v]

%windir%\system32\inetsrv\appcmd.exe backup /backupFile:C:\Path\To\Backup\mybackup.wsappbak