An mks file extension is related to the Matroska subtitles stream file format stored in Matroska container without video and audio data.

There are 3 other file types using
the MKS file extension!

mks file icon.mks - MagicKey SmartType settings file

mks file icon.mks - MasterCook cookbook file

mks file icon.mks - TACT data

Detailed description

Software that works with mks file extension

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MKS file extension - Matroska subtitles stream

What is mks file? How to open mks files?

File type specification:

Digital video and movie file type icon Digital video and movie file type

mks file icon: mks filetype icon

The mks file extension is associated with Matroska file format. Matroska is a container format generally used for video, audio and subtitles. The native file extension, that is used by Matroska, is mkv.

MKS file contains only subtitle stream without video or audio data.

To Matroska subtitle stream can be import some of the most used subtitle formats such as VobSub subtitle format (sub), SubRip subtitle format (srt), Sub Station Alpha subtitle format (ssa/ass) and Core Media Player XML universal subtitle format (usf).

The default software associated to mks file type:

VLC media player icon

VideoLAN Project Team logo VLC media player  Microsoft Windows software

Company or developer:
  VideoLAN Project Team

VLC media player is very popular multimedia player developed for Windows, Apple Mac, Linux, Unix and various other platforms.

VLC can playback many of the video formats (AVI, MKV, OGV, WMV, ASF, MOV...) and audio formats (MP3, AAC, M4A, OGG, FLAC...) as well as support of subtitles for video. It can also be used as a streaming server and multimedia transcoder.

Help how to open MKS files:

Use any compatible video players, like VLC Media Player to open mks subtitle stream.

How to convert file with extension MKS:

The mks stream can be exported to other formats with some Matroska tools.

Related links:


Homepage of MKV media format

Technical info about MKS subtitle file at Matroska website

List of video, audio and subtitle formats supported by Matroska

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

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open mks file, edit mks file, convert mks file, view mks file, play mks file etc. (if exist software for corresponding action in's database).

  • Play mks file

mks file players - programs that can play mks file - Matroska subtitles stream

Click on the link to get more information about listed programs for play mks file action.

Microsoft Windows:

Main software associated with mks file by default:
VLC media player small icon VLC media player
Other suggested software:
The Core Media Player

Apple macOS / Mac OS X:

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MK3D file extension > Digital video and movie file types

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file extension MKV


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