1. Download the app.
2. Play your videos
Add your MKV files to Elmedia MKV player in one of several ways (whichever feels more convenient):
Elmedia: universal video player can play MKV files on your Mac up to the highest standards. This versatile player for Mac can play not only MKV videos, but also DivX, MPG/MPEG, MOV, XAP, RV and many more.
Additionally to the high-quality MKV playback on Mac this versatile MKV codec pack alternative allows making screenshots of any current movie moment or even making a series of screenshots of the played movie at any chosen interval, streaming and receiving AirPlay content, loading various types of subtitles as well as offering the playlist repeat and shuffle.
MKV extension is abbreviated from Matroska Multimedia Container. Matroska is an English word derived from the Russian one - Matryoshka, which stands for a nesting doll (the Russian doll within a doll, aka a babushka doll). This is a play on the container type of the matryoshka doll, i.e. media within a form of media compared to doll within a doll.
MKV is an open standard free Container format that can hold an unlimited number of video, audio, picture or subtitle tracks inside one file. It is intended to serve as an all-purpose format to store common multimedia content, such as movies or TV shows. There are two file types of Matroska container: MKV extension is for video and audio files and MKA extension is for audio-only files.