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

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

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