Here is a detailed breakdown of what this file is and how to handle it: 1. Understanding the File Name
The .mp4 extension is missing the dot ( . ) before it. This can prevent it from opening automatically. 2. How to Open the File
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. _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 the file, you need to rename it to add the missing dot. Locate the file in your file manager. Here is a detailed breakdown of what this
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 ).
Rename the file from _VID-1615646442863blbon1mp4 to _VID-1615646442863blbon1.mp4 . This can prevent it from opening automatically
The number 1615646442863 is a Unix timestamp in milliseconds. It represents March 13, 2021, at 14:40:42 UTC [1].