To download , you should not look for a standalone executable file. Instead, this essential app packaging tool is distributed as part of larger developer toolsets from Microsoft. Official Sources to Download MakeAppx.exe
: makeappx.exe pack /d "C:\MySourceFiles" /p "C:\Output\MyApp.msix" download makeappx.exe
The most reliable way to obtain the tool is by downloading one of the following official packages: To download , you should not look for