The .sbv file extension is associated with SubViewer subtitle files. These files contain the text and timing information for subtitles, typically used in conjunction with video files. The format is relatively simple, using a plain text structure to define when each subtitle should appear and disappear on the screen. Each subtitle entry consists of a timestamp indicating the start and end time, followed by the text to be displayed. The timestamps are usually formatted as HH:MM:SS.milliseconds, and the text can span multiple lines. SBV files are widely supported by various media players and video editing software, making them a common choice for adding subtitles to videos. They are particularly useful for creating subtitles for online video platforms like YouTube, which often support uploading SBV files directly. The simplicity of the format makes it easy to create and edit subtitles manually using a text editor, although dedicated subtitle editing software provides more advanced features and a more user-friendly interface.