: This is the date the file was generated or received, formatted as YYYYMMDD (September 25, 2022).
: This is a standard WhatsApp serial code for media files. "WA" stands for WhatsApp, and the numeric suffix indicates it was likely the first media file saved or sent on that specific day. Download null 20220925 WA0001 mp4
: A sync error between WhatsApp and your device's file manager can lead to the "null" naming convention. : This is the date the file was