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M4S File

What are M4S files and how to open them

Are you having problems opening a M4S file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your M4S files.

What is a M4S file?

A .M4S file is a DASH Video Segment file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open M4S files

Important: Different programs may use files with the M4S file extension for different purposes, so unless you are sure which format your M4S file is, you may need to try a few different programs.

We have not yet verified any programs for Windows that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!

Last updated: January 15, 2011

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File.org helps thousands of users every day, and we would love to hear from you if you have additional information about M4S file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.