File extension FLV is related to Flash-compatible video file exported by the Flash Video Exporter plug-in (included with Adobe Flash) or other program with FLV file support. It consists of a short header, interleaved audio, video, and metadata packets; the audio and video data is stored in a similar format to the standard Flash (.SWF) format. The FLV format is an open format that is also supported by non-Adobe/Macromedia programs; FLV files may be exported from QuickTime Pro or other applications that can export to the QuickTime file format.

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