There are 4 file types use the .MSS file extension:
- Microprocessor Software Specification File
- MyScreenSaver Builder File
- CartoCSS Map Stylesheet
- MuseScore Style Definition
1. Microprocessor Software Specification File

- Developer Xilinx
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Popularity
- Category Developer Files
- Format Binary
File used by Xilinx Platform Studio (XPS), a program used to design software for microprocessors; specifies the input/output devices, interrupt handler routines, and other software features for a microprocessor.
MSS files define the software that can be used with a microchip designed with Xilinx Platform Studio (XPS). They are used as input into the Library Generator, which creates a software library for an embedded processor instance.
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Updated: July 9, 2010
2. MyScreenSaver Builder File

- Developer MSB
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Popularity
- Category Data Files
- Format Binary
Car data file created by MyScreenSaver Builder, a program used to make screen savers and browse and share car information; stores car images and data in a proprietary format; may include car information such as the make, model, year, price, and dimensions.
MSS files are used to package images into categorized collections for viewing, distribution, and screen saver generation. MyScreenSaver Builder can import both .GIF and .JPG image formats into MSS files.
MSS files may be viewed with the MSS Viewer, a tool included with MyScreenSaver Builder used to browse the pictures and information in MSS packages.
Software's name | License | Platforms |
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Updated: October 16, 2010
3. CartoCSS Map Stylesheet

- Developer Mapbox
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Popularity
- Category Text Files
- Format Text
An MSS file is a stylesheet used by CartoCSS-based mapping programs, such as Mapbox, OpenStreetMap, TileMill, and Mapnik. It contains map styling information written in the CartoCSS styling language. MSS files determine how content appears on a map (e.g. what roads should be shown, what colors those roads should appear in, how wide the roads should appear, etc.).
You should open an MSS file in a Carto-CSS based map creation program, such as Mapbox Studio Classic, TileMill, or Kosmtik. These programs contain helpful features that will help you understand the styling information contained within the file. However, because MSS files are plain text documents, you can also open and edit an MSS file in any text editor if needed.
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Updated: September 17, 2020
4. MuseScore Style Definition

- Developer The MuseScore Team
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Popularity
- Category Settings Files
- Format XML
An MSS file is a MuseScore style definition. It contains XML-based settings that define how a musical score appears in MuseScore. Specifically, MSS files control how notes, rests, measures, staffs, text, and other visual elements appear within a piece of a music.
You can open an MSS file (and apply the style settings it contains to a piece of music) in MuseScore. To do so, select
from the program's menu bar.If you want to view the settings an MSS file contains before applying those settings in MuseScore, you can open the file in any text editor, such as Microsoft Notepad, Apple TextEdit, or Github Atom.
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Updated: November 7, 2020