An mst file extension is used by Steam Client for some of its internal data files.

There are 6 other file types using
the MST file extension!

mst icon.mst - Corel Presentations master template

empty icon.mst - Visual Test source data

mst icon.mst - Windows Installer transform script

empty icon.mst - ChemFinder chemical structure index file

empty icon.mst - Pension System Master data

empty icon.mst - Room Arranger design data

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MST file extension - Steam Client data

What is mst file? How to open mst files?

File type specification:

Various data file type icon Various data file type

mst file icon: mst filetype icon

The mst file extension is associated with Client for Steam, a digital distribution and social network available for Windows, Mac and Linux developed by Valve.

The mst files contain some sort of data used by Steam.

The default software associated to open mst file:

Steam icon

Valve Corporation logoSteam  Microsoft Windows software

Company or developer:
Valve Corporation

Steam is digital distribution and multiplayer platform. It is used to distribution of computer games, game updates and also has chat and in-game voices features.

Steam for Mac icon

Valve Corporation logoSteam for Mac  Apple macOS / Mac OS X software

Company or developer:
Valve Corporation

Steam for Mac is digital distribution and multiplayer platform used for distribution of computer games, game updates and also has chat and in-game voices features. On Steam distribute many game developers, such as Electronic Arts, Activision, Bethesda Softworks, id Software etc.

Steam for Linux icon

Valve Corporation logoSteam for Linux  Linux/Unix software

Company or developer:
Valve Corporation

Steam for Linux is digital distribution and multiplayer platform used for distribution of computer games, game updates and also has chat and in-game voices features.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .mst file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open mst file, edit mst file, convert mst file, view mst file, play mst file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with mst file - Steam Client data

Click on the software link(s) for more information. Suggested software applications use mst file type for internal purposes and/or also by different way than common edit or open mst file actions.

Microsoft Windows:

Apple macOS / Mac OS X:

Linux/Unix:

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