~upd~: Download Makeappx.exe

makeappx.exe unpack /p C:\MyApp.msix /d C:\ExtractedApp

For modern continuous integration (Azure DevOps, GitHub Actions), the best practice is not to check the binary into source control but to use the Microsoft.Windows.SDK.BuildTools NuGet package. This package restores makeappx.exe as an artifact during the build process, ensuring that every developer and build agent uses an identical, verifiable version of the tool. Attempting to download a raw makeappx.exe from a third-party website would be dangerous; the binary is signed by Microsoft, and its authenticity is paramount because it stands between the developer’s code and the operating system’s security model. download makeappx.exe

: Automatically renames the output file to AppName_1.0.4.0_x64.msix instead of a generic App.msix . 4. Post-Build "Sign & Seal" Integration makeappx