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

f3s.ASX	Advanced Stream Redirector
f3s.DTS	Digital Theater Systems Audio File
f3s.GXF	General eXchange Format
f3s.M2V	MPEG-2 Video
f3s.M3U	MP3 Uniform Resource Locator
f3s.M4V	MPEG-4 Video File
f3s.MPEG1	MPEG-1 Video
f3s.MPEG2	MPEG-2 Video
f3s.MTS	AVCHD Video File
f3s.MXF	Material eXchange Format
f3s.OGM	Ogg Multimedia Container File
f3s.PLS	Playlist
f3s.BUP	DVD Information File
f3s.A52	Dolby Digital AC-3 Compressed Audio File
f3s.AAC	Advanced Audio Coding Compressed Audio File
f3s.B4S	Winamp 3+ Playlist
f3s.CUE	Cue Sheet
f3s.DIVX	DivX Movie
f3s.DV	Digital Video
f3s.FLV	Flash Video
f3s.M1V	MPEG-1 Video
f3s.M2TS	MPEG-2 Transport Stream Videos
f3s.MKV	Matroska Video Stream
f3s.MOV	Apple QuickTime Movie
f3s.MPEG4	MPEG-4 Video
f3s.OMA	OpenMG Audio File
f3s.SPX	Ogg Speex Audio File
f3s.TS	DVD Video
f3s.VLC	VLC Media Player Data
f3s.VOB	DVD Video Object
f3s.XSPF	XML Shareable Playlist Format
f3s.DAT	VCD Video
f3s.BIN	Binary DVD Video
f3s.IFO	DVD Information File
f3s.PART	Partially Downloaded File
f3s.3G2	3G Mobile Phone Video
f3s.AVI	Audio Video Interleave
f3s.MPEG	MPEG Video
f3s.MPG	MPEG Video
f3s.FLAC	Free Lossless Audio Codec Compressed Audio FIle
f3s.M4A	MPEG-4 Audio File
f3s.MP1	MPEG-1 Audio Layer I
f3s.OGG	Ogg Multimedia Container File
f3s.WAV	Waveform Audio
f3s.XM	Extended Module Audio File
f3s.3GP	3G Mobile Phone Video
f3s.SRT	DVD Subtitles File
f3s.WMV	Windows Media Video
f3s.AC3	Dolby Digital AC-3 Compressed Audio File
f3s.ASF	Advanced Systems Format Video
f3s.MOD	MOD Audio File
f3s.MP2	MPEG-1 Audio Layer II
f3s.MP3	MPEG-1 Audio Layer 3
f3s.MP4	MPEG-4 Part 14 Multimedia Container
f3s.WMA	Windows Media Audio File
f3s.MKA	Matroska Audio Stream
f3s.M4P	Protected AAC File

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