: Ensure the file ends in .mp4 . If a "video" download ends in .exe , .msi , or .bat , do not open it, as these are executable programs that could harm your device.

When searching for or downloading specific .mp4 files from third-party sites, keep these precautions in mind:

Could you clarify if this file belongs to a you follow or if you are trying to troubleshoot a broken download ?