MSI viewer
To open an MSI file, drop it in the box below. It opens straight away, even with no extension or the wrong one. Your browser opens it on your device: nothing is uploaded.
Open in
Opened on this device, never uploadedDrop or paste another file at any time
What you see
| MSI in the viewer | |
|---|---|
| Shown | Every stream and storage, names decoded |
| Open | Any part, in the viewer |
| Safety | Nothing is installed or run |
| Extensions | .msi, .msp, .mst |
| Upload | None: opened on your device |
What is an MSI file?
In short
MSI is a Windows Installer package: a database of tables and the files a program installs, in an OLE compound file. Patches (.msp) and transforms (.mst) are the same inside.
The parts inside the package, with their names decoded as Windows Installer packs them, and their sizes. Any part opens here. Nothing in it is run.
How to open an MSI file
- Add your MSI. Drop the file in the box, choose it or paste it.
- Look at it. The parts inside the package, with their names decoded as Windows Installer packs them, and their sizes. Any part opens here. Nothing in it is run.
- Take it further. Download any file from inside an archive, or open another file.
Questions
The parts inside it, yes: drop it here. The cabinet files hold the program’s files.
No. The viewer runs in your browser and opens the file on your device. Nothing is sent anywhere.