.MSIX File Extension
There is only one filetype that uses .MSIX file extension and it is MSIX Installer File.
MSIX Installer File
| File category: | Miscellaneous Files |
|---|---|
| Developer: | Microsoft |
| Open with: | Microsoft Windows Installer (+2 more) |
| Platforms: | Windows, macOS, Linux, iOS, Android |
An MSIX file is a Windows application package format used for installing and distributing software on Windows 10 (version 1809 and later) and newer Windows versions. It is a Zip-compressed file that contains all the necessary data for an application, including program files and XML configuration files. Microsoft introduced the MSIX format in 2018 as a modern replacement for older packaging formats like MSI, AppX, ClickOnce, and App-V.
The abbreviation "MSIX" does not have a universally defined meaning, but it represents a combination of MSI and AppX technologies, incorporating features from both. MSIX files support Win32, WPF, and Windows Forms applications and aim to improve software deployment by optimizing storage, ensuring better security, and simplifying updates and uninstallations.
Developers commonly use MSIX files to distribute applications through the Microsoft Store or other channels. These packages ensure a more reliable installation process and allow for seamless app updates.
MSIX packages must be signed before installation, ensuring authenticity and security. Developers can create MSIX files using tools like Microsoft Visual Studio, the MSIX Packaging Tool, or third-party solutions such as Caphyon Advanced Installer.
How to Open .MSIX as MSIX Installer File
To install an MSIX package, double-click the file in Windows 10 or later. This will launch the App Installer, which displays details about the application, such as its name, publisher, version, and requested permissions. Follow the on-screen prompts to complete the installation. Once installed, the application files are placed in the ProgramFiles/WindowsApps directory.
How to Convert an MSIX File
If you want to inspect the contents of an MSIX file without installing it, you can rename the extension from .msix to .zip and extract it using a Zip-compatible tool like WinRAR or WinZip. The extracted files include:
- AppxBlockMap.xml - Lists the app's files along with cryptographic hashes.
- AppxManifest.xml - Stores metadata needed for deployment, updates, and display.
- AppxSignature.p7x - Contains the digital signature required for installation.
Applications That Open MSIX Files
Windows Apps for MSIX Files:
- Microsoft Windows Installer Included with OS
- 7-Zip Free
- WinZip Free Trial
macOS Apps for MSIX Files:
Linux Apps for MSIX Files:
- 7-Zip Free
iOS Apps for MSIX Files:
- WinZip Free Trial
Android Apps for MSIX Files:
- WinZip Free Trial