It comprises multiple MSIX packages to support different specific system architectures like x86, x64, and ARM.
Related post:What Does MSIX Stand for?
What Are the Main Features of It?

After knowing so many details about MSIXBundle, how to install MSIXBundle?
Find ways from the following part now.
you might install packages with these formats in the same ways.

you better install it on your Windows 10/11 PC for the installation.
Starting on Windows 10 1809, Windows Package Manager is supported via App Installer.
Step 2: Search forApp Installerin Store and then install it.
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Step 3: Then, double-hit the .msixbundle file and you’re free to see the following window.
Just clickInstallto start installing MSIXBundle.
Install MSIXBundle PowerShell
Sometimes you may run into some errors when installing MSIXBundle in Windows App Installer.
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In this case, you’re free to choose the way PowerShell install MSIXBundle.
Step 2: TypeAdd-AppxPackage -Path C:\Path\App-Package.msixbundleinto the window and pressEnter.
Try 8 ways here now.
If you gotta set up the .msixbundle app package on your PC, just follow the given instructions.
MiniTool ShadowMaker will be a good assistant.
How to create a backup?
Using Windows 11 backup software to do it.