VLC media player is an open source video and audio player capable of playing almost any type of media including DVDs and VCDs. In addition to being able to play most video and audio files, VLC can also post free ads without registration
File extensions that can be opened by vlc-media-player

xk.ASX	Advanced Stream Redirector
xk.DTS	Digital Theater Systems Audio File
xk.GXF	General eXchange Format
xk.M2V	MPEG-2 Video
xk.M3U	MP3 Uniform Resource Locator
xk.M4V	MPEG-4 Video File
xk.MPEG1	MPEG-1 Video
xk.MPEG2	MPEG-2 Video
xk.MTS	AVCHD Video File
xk.MXF	Material eXchange Format
xk.OGM	Ogg Multimedia Container File
xk.PLS	Playlist
xk.BUP	DVD Information File
xk.A52	Dolby Digital AC-3 Compressed Audio File
xk.AAC	Advanced Audio Coding Compressed Audio File
xk.B4S	Winamp 3+ Playlist
xk.CUE	Cue Sheet
xk.DIVX	DivX Movie
xk.DV	Digital Video
xk.FLV	Flash Video
xk.M1V	MPEG-1 Video
xk.M2TS	MPEG-2 Transport Stream Videos
xk.MKV	Matroska Video Stream
xk.MOV	Apple QuickTime Movie
xk.MPEG4	MPEG-4 Video
xk.OMA	OpenMG Audio File
xk.SPX	Ogg Speex Audio File
xk.TS	DVD Video
xk.VLC	VLC Media Player Data
xk.VOB	DVD Video Object
xk.XSPF	XML Shareable Playlist Format
xk.DAT	VCD Video
xk.BIN	Binary DVD Video
xk.IFO	DVD Information File
xk.PART	Partially Downloaded File
xk.3G2	3G Mobile Phone Video
xk.AVI	Audio Video Interleave
xk.MPEG	MPEG Video
xk.MPG	MPEG Video
xk.FLAC	Free Lossless Audio Codec Compressed Audio FIle
xk.M4A	MPEG-4 Audio File
xk.MP1	MPEG-1 Audio Layer I
xk.OGG	Ogg Multimedia Container File
xk.WAV	Waveform Audio
xk.XM	Extended Module Audio File
xk.3GP	3G Mobile Phone Video
xk.SRT	DVD Subtitles File
xk.WMV	Windows Media Video
xk.AC3	Dolby Digital AC-3 Compressed Audio File
xk.ASF	Advanced Systems Format Video
xk.MOD	MOD Audio File
xk.MP2	MPEG-1 Audio Layer II
xk.MP3	MPEG-1 Audio Layer 3
xk.MP4	MPEG-4 Part 14 Multimedia Container
xk.WMA	Windows Media Audio File
xk.MKA	Matroska Audio Stream
xk.M4P	Protected AAC File

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