MST File

What are MST files and how to open them

Are you having problems opening a MST file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a MST file?

MST files have multiple uses, and Windows SDK Setup Transform Script is one of them. Read more about the other uses further down the page.

Windows SDK Setup Transform Script

The Microsoft Windows operating system uses files that contain the .mst file extension to customize the installation settings for Microsoft Windows Installer applications. The MST file can change the properties of a Windows Installer, allowing different user groups custom installation options when installing various computer applications.

MST files are commonly used for software testing and development purposes. These files contain different software configurations and custom software parameters that are built during the software development process. An MST file is usually only one part of a complete installer package, with the actual installer package containing the .msi file suffix.

How to open MST files

Important: Different programs may use files with the MST file extension for different purposes, so unless you are sure which format your MST file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested ten different MST openers which you will find listed below.

Last updated: December 11, 2022

More file formats using the MST extension

Through our research of MST files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • M Project
  • Room Arranger Design

Various apps that use files with this extension

These apps are known to open certain types of MST files. Remember, different programs may use MST files for different purposes, so you may need to try out a few of them to be able to open your specific file.

PresentationsPresentationsUser submitted
Corel PresentationsCorel PresentationsUser submitted
Room ArrangerRoom ArrangerUser submitted
MediaShoutMediaShoutUser submitted
Almeza MultiSet ProfessionalAlmeza MultiSet ProfessionalUser submitted
Advanced InstallerAdvanced InstallerUser submitted
MensuraMensuraUser submitted
MIKE ZeroMIKE ZeroUser submitted
PRO_SAP PROfessional SAP RY2012PRO_SAP PROfessional SAP RY2012User submitted

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about MST file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.