.MKV File Extension
Full form: Matroska Video
What is a .mkv file?
An open container that can hold unlimited video, audio and subtitle tracks in a single file. Files that end with .mkv belong to the video family of file types, so your computer links them with a suitable program automatically.
Where is .mkv used?
HD movies and series with multiple languages or subtitles. Because the format is so common, almost every modern device and software understands it.
Examples of .mkv file names
film.mkv
How to open a .mkv file
You can open it with: VLC, MX Player, Kodi. If it does not open, check that the file is not damaged and that you have downloaded it fully; also confirm that the extension was not renamed by mistake.
Quick tips
Never rename a file just to change its extension, because that does not convert the data inside. Use a proper converter or the Save As / Export option. Keep a backup copy of important video files before editing them.