KMPlayer
KMPlayer for Windows plays almost every video format
KMPlayer is a free multimedia player for Windows designed for users who want broader format support and more control than a basic media app usually provides. Its biggest strength is compatibility: it can handle many common video types, including WMV, MKV, OGM, 3GP, FLV, and MOV, along with higher-end content such as 3D, 4K, and Ultra HD video.
In everyday use, KMPlayer works well as a central player for mixed media collections.