.MKS File Extension
File TypeMatroska Elementary Stream File
What is an MKS file?
Subtitle container format developed by Matroska; contains only subtitles unlike the MKV format which can also contain video with the subtitles.
The MKS file format is developed by Matroska, which is an extensible, open source, open standard multimedia container. Matroska also develops the .MKV format to contain video, .MK3D to contain 3D video, and .MKA to contain audio.