# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

.MSI File Extension

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File TypeWindows Installer Package
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Rare Uncommon Average Common Very Common
CategoryMisc Files
File Format Description

Contains installation information for a particular installer, such as files to be installed and installation locations; 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.

Program(s) that open .MSI files
Updated 6/13/2009