If the video features a person or a place, film a 5-second clip of that same subject today. Stitch them together for a high-engagement social media post.
Right-click the file and look at "Properties" (Windows) or "Get Info" (Mac). You can often see the exact time it was saved or the device that originally filmed it. VID-20181126-WA0013mp4
If you found this file in a random folder you don't recognize, run a quick scan with your antivirus. Old media files are occasionally used to mask script exploits in shared folders. If the video features a person or a