: Indicates this was the first video file processed by WhatsApp on that specific date.
: A proprietary compressed archive format (Roshal Archive). This means the video file (e.g., an .mp4 ) is packed inside this "container" to save space or group multiple files together. Security & Safety Warning Download VID 20200609 WA0 rar
: The date in YYYYMMDD format (June 9, 2020), which is the standard ISO 8601 date convention for file sorting. : Indicates this was the first video file