Opening an MSS File

The MSS file type is primarily associated with Materials Studio.

MSS	File extension: MSS
	File type:	data file

What is an MSS file?

MSS files mostly belong to Materials Studio. An MSS file is not a single file type but a label used for files created by different software.
For one use, it is a Materials Studio file that uses a Microsoft Compound format. This file holds simulation and material data created by Materials Studio software (from MTS TestWorks). You can learn more at MTS.
In another scenario, an MSS file can be a game save file. It stores game progress for titles like MechWarrior 5: Mercenaries and Magic: The Gathering. For details on this usage, see this link.
Finally, some MSS files work as a MuseScore style sheet using the XML format. They hold layout and styling details for music scores. Visit MuseScore for more information.
Key points summarized by FilExt.com:

File content and structure change based on its purpose.

It may use a compound format, plain XML, or even other formats.

Proper opening requires the correct software, such as simulation tools, the game itself, or MuseScore.

Viewing in a text editor can reveal XML data in style sheets.

How to open an MSS file

You need a suitable software like Materials Studio to open an MSS 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 MSS file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a MSS file directly in the browser:. Just drag the file onto this browser window and drop it.

Online MSS Text Viewer

Choose your .mss file to analyze

or drag and drop it here

Online File Viewer

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MSS file format:

A file format defines how the data in the file is structured. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. If the file extension or signature does not match the file format, errors will occur when opening or editing the file. So a detailed analysis of a file is vital in order to determine the format and the associated program. Our analysis of the MSS files produces the following result:

Files with the MSS extension are quite widely used. This file type is used by a few programs, each with its own file format. But the following two file formats are common:

• 55% of all MSS files use the same file format, which have the signature 02 2F 00 00 00 00 01 24. They consist of unreadable binary data. The average file size is 100 KB with most files being between 42 KB and 160 KB in size. This file type is new and state-of-the-art. The keywords Cores.Save.GameSave, Assembly-CSharp, _gameTime, _tags and Cores.TagContainer, Assembly- are typical for these files. A common filename is save.mss.
• 25% of all MSS files use the Microsoft Compound File format, also known as Composite Document File format or OLE2 compound document format. Compound document files work similarly to real file systems. They contain a number of independent data streams (like files in a file system) which are organized in a hierarchy of containers (like sub-directories in a file system). The Compound Document format is always starting with the bytes D0 CF 11 E0 A1 B1 1A E1. There is also a CLSID, a globally-unique identifier of a COM (Component Object Model) object: d4a83b60-b13d-4159-a5d8-a5c2d405e5b0 or f50dfe70-54df-11d0-849b-0080c80d02d2. The data in this file is stored in streams whose names are BVS PARTS, Bvs Book, Bvs File Name, Bvs Group Name, Bvs PageOriginal, Bvs PiepMaster, Bvs Sheet Date, Bvs Sheet Name, Bvs Version, Contents, Coord, FigureData, GenbaInfo and Bvs Page000. A typical file size is 840 KB. Such files sometimes refer to sample.

All the rest of the MSS files (20%) have different formats, often, for example, Advanced Mario Sequencer Song, Scribe Markup and The Music Studio Song. Tagged as majiro, style, readmark, manual, servicio, system or score. Drag & drop your file here to see the file format and a preview of your MSS file!