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

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

axtf   bxtf   cxtf   dxtf   extf   fxtf   gxtf   hxtf   ixtf   jxtf   kxtf   lxtf   mxtf   nxtf   oxtf   pxtf   qxtf   rxtf   sxtf   txtf   uxtf   vxtf   wxtf   xxtf   yxtf   zxtf   0xtf   1xtf   2xtf   3xtf   4xtf   5xtf   6xtf   7xtf   8xtf   9xtf