Vid-20210822-wa0189mp4

: Look at the WhatsApp conversation where you received the file. The context of the chat will usually tell you what the video is about.

: The date the video was saved or sent (August 22, 2021). WA : Stands for "WhatsApp." VID-20210822-WA0189mp4

The filename is a generic name automatically generated by WhatsApp . : Look at the WhatsApp conversation where you

: A unique serial number assigned by the app to distinguish it from other videos saved on that same day. How to find out what is in the video: WA : Stands for "WhatsApp

: If you have the file on a computer, right-click it and select Properties (Windows) or Get Info (Mac). Sometimes the "Origin" or "Description" fields contain hints, though WhatsApp usually strips this data for privacy.

Because this name is specific to the person who originally saved or shared the file, there is no public "guide" or information available for it online. : Short for "Video."