_vid-1615646442863blbon1mp4 -

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.

Files with this format ( VID- followed by numbers) are very common in the WhatsApp/Media/WhatsApp Video/ folder. They are named this way to ensure uniqueness [2]. _VID-1615646442863blbon1mp4

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 ). If this file is in a cloud storage

The .mp4 extension is missing the dot ( . ) before it. This can prevent it from opening automatically. 2. How to Open the File They are named this way to ensure uniqueness [2]

Here is a detailed breakdown of what this file is and how to handle it: 1. Understanding the File Name

Rename the file from _VID-1615646442863blbon1mp4 to _VID-1615646442863blbon1.mp4 .

VLC is robust and can often play partially corrupted video files or open files with incorrect extensions [3]. Check File Size: If the file size is or very small (e.g., less than ), the video failed to save properly. 4. Backup Considerations