Microsoft Windows Installer Installation Package
Microsoft
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File with an .MSI extension contains a compressed installation data package for Windows system. System update installers and software provided by companies other than Microsoft, within an MSI file, have information on files that are going to be installed and their final directories.

In order to differentiate system installer files from others, Windows Vista applied files with an .MSU extension, for update installers. The content of an MSI package can be unpacked with a regular file decompression tools.

.aawdef Ad-Aware Definitions Format
.abr Adobe Photoshop Brush Format
.ac$ AutoCAD Undo Info Format
.acc DR DOS - ViewMax Format
.acl Microsoft Office Automatic Correction List
.acs Microsoft Agent Character Structured Storage Format
.ad After Dark Screen Saver Format
.add Microsoft Dynamics AX Developer Documentation Format

Last updated

.mmf 04/13/2023
.mup 04/13/2023
.itl 04/13/2023
.scs 04/10/2023
.crypt 04/10/2023
.pnp 04/10/2023
.tap 04/10/2023
.btr 04/03/2023