Why convert EMSIXBUNDLE to APPXBUNDLE?
People look for this because both are Windows app bundles and the extensions look similar, but they are different formats from different eras of Windows packaging. An emsixbundle decrypts to MSIX, not to the legacy .appxbundle. The realistic goal is to decrypt the emsixbundle to its native .msixbundle, which is the modern replacement for AppX anyway.
How to convert EMSIXBUNDLE to APPXBUNDLE
Decrypt to .msixbundle with MakeAppx.exe FREE
With the encryption key, run MakeAppx.exe decrypt /p out.msixbundle /ep app.emsixbundle /kf key.txt from the Windows SDK to get the native .msixbundle (not an appxbundle).
Rebuild as AppX in Visual Studio PAID
If you own the source project, use Visual Studio's Windows Application Packaging Project to produce an .appxbundle directly; you cannot cross-convert a finished bundle.
About these formats
An .emsixbundle file is an encrypted MSIX app bundle for Windows 10 and 11. It holds one or more architecture-specific app packages (x86, x64, ARM, ARM64) that Microsoft's MakeAppx.exe tool…
Open .EMSIXBUNDLE details →
.APPXBUNDLE
Microsoft Windows app bundle package
A .APPXBUNDLE file is associated with Microsoft Windows app bundle package, a compressed file.
Open .APPXBUNDLE details →Quality & what to watch
- An emsixbundle can only be decrypted, not transformed into a different bundle format.
- MSIX has replaced AppX; there is no supported tool that downgrades an MSIX bundle to an AppX bundle.
- Decryption requires the original hexadecimal key file the developer used to encrypt the package.
Frequently asked questions
Can I turn an emsixbundle into an appxbundle?
.msixbundle, and MSIX bundles cannot be converted to the older AppX bundle format.What is an emsixbundle then?
.msixbundle created so users cannot unpack its contents without the key.