: The filename "VID-20210916-WA0017" suggests this is a WhatsApp video saved on September 16, 2021 . You can find it by searching your phone's gallery or file manager under Internal Storage > Android > media > com.whatsapp > WhatsApp > Media > WhatsApp Video .
Did you see this file on a or app ? If so, I can help you figure out how to save it from there. Download File VID-20210916-WA0017.mp4
: If you saw this in a public post (like Reddit or Twitter), look for a "Download" button or use a trusted third-party downloader specific to that platform. : The filename "VID-20210916-WA0017" suggests this is a
: If this is a link to a service like Google Drive or Dropbox, you will need to click the link and select "Download" from the file options menu. If so, I can help you figure out how to save it from there