The following article uses options that are available starting with the Professional edition and project type.
This tutorial will guide you in importing an AppX package into an Advanced Installer project. At the end of this tutorial you will find a step-by-step video on how to create a new AppX package from scratch.
If Advanced Installer is not currently running, launch it by double-clicking a desktop icon or selecting it from the "Start" menu. When the application starts, you will see a dialog where you can choose “Import” > “Import Windows Store App” project type.
The AppX Import Wizard will be launched assisting you to configure the import settings.
In this dialog select the location of the AppX file you want to import and specify a work directory where the resources will be extracted.
Press thebutton so that Advanced Installer can inspect the AppX package.
Creating a new AppX package
The following video shows how to create a new AppX package from scratch using Advanced Installer: