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

xsei1aaeulp.ASX	Advanced Stream Redirector
xsei1aaeulp.DTS	Digital Theater Systems Audio File
xsei1aaeulp.GXF	General eXchange Format
xsei1aaeulp.M2V	MPEG-2 Video
xsei1aaeulp.M3U	MP3 Uniform Resource Locator
xsei1aaeulp.M4V	MPEG-4 Video File
xsei1aaeulp.MPEG1	MPEG-1 Video
xsei1aaeulp.MPEG2	MPEG-2 Video
xsei1aaeulp.MTS	AVCHD Video File
xsei1aaeulp.MXF	Material eXchange Format
xsei1aaeulp.OGM	Ogg Multimedia Container File
xsei1aaeulp.PLS	Playlist
xsei1aaeulp.BUP	DVD Information File
xsei1aaeulp.A52	Dolby Digital AC-3 Compressed Audio File
xsei1aaeulp.AAC	Advanced Audio Coding Compressed Audio File
xsei1aaeulp.B4S	Winamp 3+ Playlist
xsei1aaeulp.CUE	Cue Sheet
xsei1aaeulp.DIVX	DivX Movie
xsei1aaeulp.DV	Digital Video
xsei1aaeulp.FLV	Flash Video
xsei1aaeulp.M1V	MPEG-1 Video
xsei1aaeulp.M2TS	MPEG-2 Transport Stream Videos
xsei1aaeulp.MKV	Matroska Video Stream
xsei1aaeulp.MOV	Apple QuickTime Movie
xsei1aaeulp.MPEG4	MPEG-4 Video
xsei1aaeulp.OMA	OpenMG Audio File
xsei1aaeulp.SPX	Ogg Speex Audio File
xsei1aaeulp.TS	DVD Video
xsei1aaeulp.VLC	VLC Media Player Data
xsei1aaeulp.VOB	DVD Video Object
xsei1aaeulp.XSPF	XML Shareable Playlist Format
xsei1aaeulp.DAT	VCD Video
xsei1aaeulp.BIN	Binary DVD Video
xsei1aaeulp.IFO	DVD Information File
xsei1aaeulp.PART	Partially Downloaded File
xsei1aaeulp.3G2	3G Mobile Phone Video
xsei1aaeulp.AVI	Audio Video Interleave
xsei1aaeulp.MPEG	MPEG Video
xsei1aaeulp.MPG	MPEG Video
xsei1aaeulp.FLAC	Free Lossless Audio Codec Compressed Audio FIle
xsei1aaeulp.M4A	MPEG-4 Audio File
xsei1aaeulp.MP1	MPEG-1 Audio Layer I
xsei1aaeulp.OGG	Ogg Multimedia Container File
xsei1aaeulp.WAV	Waveform Audio
xsei1aaeulp.XM	Extended Module Audio File
xsei1aaeulp.3GP	3G Mobile Phone Video
xsei1aaeulp.SRT	DVD Subtitles File
xsei1aaeulp.WMV	Windows Media Video
xsei1aaeulp.AC3	Dolby Digital AC-3 Compressed Audio File
xsei1aaeulp.ASF	Advanced Systems Format Video
xsei1aaeulp.MOD	MOD Audio File
xsei1aaeulp.MP2	MPEG-1 Audio Layer II
xsei1aaeulp.MP3	MPEG-1 Audio Layer 3
xsei1aaeulp.MP4	MPEG-4 Part 14 Multimedia Container
xsei1aaeulp.WMA	Windows Media Audio File
xsei1aaeulp.MKA	Matroska Audio Stream
xsei1aaeulp.M4P	Protected AAC File

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