File Extension Library

.MSI File Extension

  • Developer by: Microsoft
  • Category: Misc Files
  • Format: Binary

What are .MSI files and how to open them?

Can't open .MSI file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .MSI file.

What is a .MSI file extension?

.MSI file extension is created by Microsoft. .MSI has been classified as Misc Files. The format of .MSI file is Binary.

.MSI is Windows Installer Package

An MSI file is a package that contains installation information for a particular installer, such as files to be installed and installation locations. It may be used for Windows updates as well as third-party software installers.

The contents of an MSI package may be extracted using a file decompression utility like 7-Zip.

NOTE: In Windows Vista, .MSU files are used to install system updates and hotfixes.

List of all softwares that can open the Windows Installer Package
Microsoft Windows Installer

How to fix problems with .MSI files

  1. You need to update the application that you normally use to open .MSI files. Only the latest version of the software supports the current .MSI file format
  2. You need to check the .MSI file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)