Opening an MST File

The MST file type is primarily associated with Windows.

MST	File extension: MST
	File type:	Windows Installer Setup Transform file

What is an MST file

MST files mostly belong to Windows by Microsoft. MST is the file extension associated with a Windows Installer setup transform file. Setup transform files are used to modify software setups created using the Microsoft Windows Installer (MSI). Microsoft Windows Installer is a component of the Windows operating system that is used for installing, maintaining, and uninstalling software. MST is a settings file that customizes an MSI package. Among the configuration details stored in an MST file are the installation directory, installation features, and license information for the software setup. MST files are used by msiexec.EXE, which is the command-line program for Microsoft Windows Installer. The files are used alongside MSI files, which is the format for the installation package. The use of MST files in an installation is optional. MST files can be created and modified using the Orca utility, which is a database table editor for creating and editing Microsoft Windows Installer packages. Orca is included in the Windows SDK Components for Windows Installer Developers.

How to open MST files

You need a suitable software like Windows to open an MST file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your MST file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a MST file directly in the browser:. Just drag the file onto this browser window and drop it.

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Programs that open and convert MST files:

Windows by Microsoft
See the previous paragraphs to learn more about the main application. MST files are often referred to as Windows settings because this type of file is primarily created or used by this software.
ChemFinder (Chemical structure index file) by Sigma-Aldrich
ChemFinder is a suite of database management system from Sigma-Aldrich that provides physical property data and 2D chemical structures of chemical compounds. The program's chemical structure index file is stored in MST format. This file format is classified as Database. Related links: ChemFinder on University of York, ChemFinder on Calvin University
FortiClient (Settings file) by Fortinet
FortiClient is an endpoint security software developed by Fortinet for creating a secure Virtual Private Network connection between devices using SSL VPN Tunnel Mode. FortiClient installation options are stored as an MST file This file format is classified as Settings. Related links: FortiClient on Google PlayStore, FortiClient on Apple Store, FortiClient on Microsoft
Gurobi Optimizer (MIP start file) by Gurobi Optimization
Gurobi Optimizer is a suite of solvers developed by Gurobi Optimization for mathematical programming. The program's MIP start data, which allows it to start with a known feasible solution, is stored in MST format. This file format is classified as Data. Related links: Gurobi Optimizer on YouTube, Gurobi Optimizer on solver, Gurobi Optimizer on dockerhub
Java (Data file) by James Gosling
Java is a general-purpose, high-level, object-oriented programming language developed in the early 1990s by James Gosling at Sun Microsystems. Java can read, edit and create MST files. This file format is classified as Page Layout. Related links: Java on Wikipedia, Java on YouTube, Java on Twitter
Marg ERP (Backup file) by Marg ERP
Marg ERP is a business management software developed by Marg ERP for accounting, invoicing, inventory, etc. Marg ERP stores backup files in MST format. This file format is classified as Data. Related links: Marg ERP on Amazon, Marg ERP on YouTube, Marg ERP on netforchoice
Pension System (Master File) by DATAIR Employee Benefit Systems
Presentation (Master Presentation Document) by Corel
Presentations is a presentation program much similar to Microsoft's PowerPoint and currently a part of WordPerfect office productivity suite by Corel. It allows users to create slideshows, interactive reports, proposals, and presentations. The program's master template file, which contains the default settings for a presentation's font styles, background image, header, font size and footer, is stored in MST format. This file format is classified as Settings. Related links: Presentations on Wikipedia, Presentations on Indezine, Presentations on Winworldpc
Python (Data file) by Python Software Foundation
Python is a high-level programming language developed by Python Software Foundation for general-purpose programming such as machine learning, desktop application, web development, etc. Python can read, edit and create MST files. This file format is classified as Page Layout. Related links: Python on Wikipedia, Python on YouTube, Python on Coursera
Room Arranger (Project file) by Jan Adamec
Room Arranger is a 3D designer application developed by Jan Adamec for creating room, apartment, and floor plans. Room Arranger store project files in MST format. This file format is classified as CAD. Related links: Room Arranger on Apple Store, Room Arranger on YouTube, Room Arranger on Pinterest
Windows (SDK Setup Transform Script) by Microsoft
The file contains modifications to apply to a package during installation.

MST file format details:

Every file has a defined file format, i.e. how the data is arranged in the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. If the file extension or signature does not match the file format, errors will occur when opening or editing the file. So you need a detailed analysis of a file to find out the format and the associated program. Below you will find our evaluation of the MST files:

MST is a very widely used file extension. The file type mainly uses a defined MST format. However, the following two file formats are common:

85% of all MST files are based on the Microsoft Compound File format, known also as OLE2 Compound Document format or Composite Document File format. This general-purpose file format provides a file-system-like structure within a file for the storage of arbitrary, application-specific streams of data. The Compound Document format is always starting with the bytes D0 CF 11 E0 A1 B1 1A E1. MST files contain an app name Windows Installer XML Toolset, Windows Installer, Advanced Installer or InstallShield 2015 - Professional Edition 22. The globally unique identifier of this file type is 000c1082-0000-0000-c000-000000000046 or 2d964073-9bc9-11d1-840b-006008ac6551. Sections and streams in the file are named and SummaryInformation. The file size is in the range of 20 KB to 74 KB. The file type is old but is used even today. A common filename is FortiClient.mst. Files like these are sometimes connected to client, agent, forti, desktop, central, acro, transform and snagit.
1% of all MST files use ZIP compression, multiple files are compressed and combined into one MST file. Most often they are 10 to 12 compressed files. Common included file names are SNMANRC1.INI, SNMANRI.INI, SNMANRI1.INI, SNMCAL1.FPT, SNMCAL1.INI, SNMEXHCD.INI, SNMEXPCD.INI, SNMPD.INI and customerinfo.ini. A little tip: If you rename the file extension to .zip and then double-click, you will see the included files and images. MST files are between 4 KB and 6 KB in size. Several words can almost always be found in the files, e.g. SNMANRC1.INI. An example of a file name is monday.mst or tuesday.mst.

All other MST files (14%) have no consistent format, the following 5 formats exist: TICKER and Produktion. Tagged as setup, read, anyconnect, revu, bluebeam or windows. Drag & drop your file here to see the file format and a preview of your MST file!

Technical Data for MST File Extension

File classification:

Settings

Related files:

oxv, zip, oxs, mts, xrf, mex, exe, msi, mht, mbk, ist, mib, png, m, fcl, rar, cnt, rap, keytab, msg, log, sym

Mime type:

application/x-ms-installer, application/x-msi

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: MSTFile, FileType: Windows Installer Transform file

ProgramID: Presentations10.Master, FileType: Corel Presentations 10 Master, AppName: Corel(R) Presentations(TM) 10
EXEFile: Prwin10.exe

ProgramID: Presentations8.Master, FileType: Corel Presentations 8 Master, AppName: Presentations for Windows Executable

ProgramID: Presentations9.Master, FileType: Corel Presentations 9 Master, AppName: Corel® Presentations (TM) 9

ProgramID: Presentations10.Master
EXEFile: F:\Corel\WordPerfect Office 2002\PROGRAMS\Prwin10.exe /ddeex

ProgramID: Presentations8.Master
EXEFile: %ProgramFiles%\Corel\Suite 8\Programs\PRWIN8.EXE /ddeex

ProgramID: Presentations9.Master
EXEFile: %ProgramFiles%\corel\Corel\WordPerfect Office 2000\programs\prwin9.exe /ddeex

ProgramID: Presentations10.Master
EXEFile: %ProgramFiles%\Corel\WordPerfect 10\PROGRAMS\Prwin10.exe /ddeex

ProgramID: Presentations11.Master
EXEFile: %ProgramFiles%\WordPerfect Office 11\Programs\Prwin11.exe /ddeex

ProgramID: ISWI.ProjectFile.1
EXEFile: %ProgramFiles%\Macrovision\IS11.5\System\isdev.exe

ProgramID: Presentations13.Master
EXEFile: %ProgramFiles%\WordPerfect Office X3\Programs\Prwin13.exeex

ProgramID: mstfile
EXEFile: %ProgramFiles%\MSDEV\BIN\MSDEV

ProgramID: RoomArranger.File
EXEFile: %ProgramFiles%\Room Arranger\rooarr.exe

ProgramID: MultiSet
EXEFile: %ProgramFiles%\Utilities\MultiSet\MULTISET.EXE

ProgramID: Presentations12.Master
EXEFile: NOTEPAD.EXE

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an mst Windows Installer Setup Transform file is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with MST files

Associate the MST file extension with the correct application.
Update your software that should actually open windows installer setup transform files. Because only the current version supports the latest MST file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Windows update.
To make sure that your MST file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .MST file online - secure, fast, and no downloads needed.