(e.g., in a specific app folder, an email, or a cloud drive?)
This specific string of numbers looks like a system-generated ID, often used by social media apps (like WhatsApp, TikTok, or Instagram) or automated security camera backups. To help you with this, could you tell me a bit more? _-4107153383321.mp4
Are you trying to identify what’s in it, recover a corrupted version of it, or find out which app created it? in a specific app folder
If you can describe the contents or provide more context, I’d be happy to help you figure it out! exactly did this file pop up for you? recover a corrupted version of it