If your phone or computer does not recognize the file, you need to rename it to add the missing dot. Locate the file in your file manager.
The .mp4 extension is missing the dot ( . ) before it. This can prevent it from opening automatically. 2. How to Open the File _VID-1615646442863blbon1mp4
If renaming it does not work, the file might be corrupted or only partially downloaded. If your phone or computer does not recognize
This file name, , appears to be a automatically generated identifier for a video file, likely created by a messaging app (like WhatsApp or Signal), a screen recorder, or a cloud backup service. The structure suggests a timestamp ( 1615646442863 ) combined with a random string ( blbon1 ) and a modified file extension ( mp4 instead of .mp4 ). ) before it
The number 1615646442863 is a Unix timestamp in milliseconds. It represents March 13, 2021, at 14:40:42 UTC [1].
If this file is in a cloud storage folder (like Google Drive or OneDrive), it likely represents a memory from 2021 that was backed up from a mobile device [2]. It is safe to move, rename, or delete, depending on whether you want to keep the media.