.MST File Extension

File Type 1

Windows Installer Setup Transform File

Developer Microsoft
4.1  |  134 Votes
Category Settings Files
Format N/A

What is an MST file?

An MST file is a settings file used by the Microsoft Windows Installer (msiexec.exe), a component of the Windows operating system that enables software installations. It contains software configuration options and allows custom parameters to be used for the installation. MST files are used in software development and testing for configuring test versions of the software.

More Information

MST files are used in conjunction with Microsoft Windows installer packages (.MSI files). Their settings can be included with an installation package at the command line using the following syntax:
    msiexec installpkg.msi TRANSFORMS=transforms.mst

NOTE: Both MSI and MST files can be configured using the Microsoft Orca Editor (Orca.exe), a program included with the Windows Software Development Kit (SDK).

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Programs that open MST files

Updated November 30, 2018
File Type 2

Corel Presentations Master Template File

Developer Corel
4.0  |  46 Votes
Category Settings Files
Format Binary

What is an MST file?

Template file created by Corel Presentations, a program used for creating slide presentations; contains default settings for the background image, font styles, font sizes, header, and footer of slides within a presentation; used for templating styles across all presentations slides.

Programs that open or reference MST files

Updated January 26, 2010

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