If you can tell me (e.g., in a specific app, an email, or a file folder) or what happens when you try to open it , I can help you identify its purpose.
Look at the folder path where the file is stored to understand its context. black102.mp4
It is highly likely that this is a on your personal device, a private link, or a placeholder name. If you can tell me (e
Right-click the file and select "Properties" (Windows) or "Get Info" (Mac) to see when it was created, its size, and the application that created it. If you can tell me (e.g.
If the file appeared unexpectedly, run a scan with your antivirus software to ensure it is safe.