When installing, BSPlayer codec manager ask you to install requiered codecs, such as LAV filters which handle more than OK any usual video format, including MKV. So, if you didn't install them, do it running codecmanager.exe from BSPlayer install folder.

Which players can play MKV?

The VLC media player is the best way to open and play an . MKV file. You can also use Windows Media Player, DivX Player, etc. or you can use media codecs. You can even convert them to an easily readable file format like API or MP4.

Can Mxplayer play MKV files?

Play MKV with softsub file on your phone or tablet? Use MX Player. Subtitle will show correctly.