LanguageMKS
Matroska subtitles stream
File type: Digital video and movie file
Files with mks extension are related to the Matroska subtitles stream file format stored in Matroska container without video and audio data.
Found 4 different file type records with the same mks filename suffix.
What is mks file?
File type category:
Digital video and movie file
Date updated: July 13, 2025
File extension mks 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.
The 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).
How to open mks file?
Use any compatible video players, like VLC Media Player to open .mks subtitle stream.
How to convert mks file?
The .mks stream can be exported to other formats with some Matroska tools.
Suggested software to open mks file:
Associated software actions with the mks file
Apps designed for playing mks files:
VLC media player (Microsoft Windows)
The Core Media Player (Microsoft Windows)
VLC media player for Mac (Apple macOS / Mac OS X)
VLC media player for Linux (Linux/Unix)
VLC media player for Android (Google Android)
MagicKey SmartType settings
File type category:
Settings, options, themes or skins file
Date updated: January 23, 2019
The mks file extension is associated with the MagicKey, an application that contains various every day functions, like Form-Filler, calculator, units converter, currency conversion calculator etc.
The mks file stores settings.
How to open mks file?
It doesn't seem these files are meant to be opened directly, they are settings.
How to convert mks file?
We do not know about any possible conversion for this particular settings file. But generally speaking, setting files are not meant to be converted to anything else.
Suggested software to open mks file:
Associated software actions with the mks file
Software apps that manage settings for mks files:
MagicKey (Microsoft Windows)
MasterCook cookbook data
File type category:
Various data file
Date updated: October 17, 2018
The mks file extension is associated with the MasterCook, a cookbook application for Microsoft Windows with more than 8 000 recipes and also able to manage user's recipes.
The mks file stores cookbook with recipes.
How to open mks file?
Use MasterCook to work with *.mks files.
How to convert mks file?
Probably can be exported to other formats.
Suggested software to open mks file:
Associated software actions with the mks file
Software applications that can open mks files:
MasterCook (Microsoft Windows)
Software apps that create mks files:
MasterCook (Microsoft Windows)
Software applications that handle other tasks involving mks files:
MasterCook (Microsoft Windows)
TACT data
File type category:
Various data file
Date updated: July 5, 2016
The mks file extension is associated with the TACT (Text Analysis Computing Tools) programs for MS-DOS operating system.
The mks file stores some kind of data used by TACT software.