Right-click the file and select Properties (Windows) or Get Info (Mac) to see the "Date Created" or "Origin," which might tell you where it came from.
Many NVR (Network Video Recorder) units export files with long strings of metadata including timestamps and camera IDs. Right-click the file and select Properties (Windows) or
If your operating system struggles to open the file due to the long, strange name, rename it to something simple like video_test.mp4 . Right-click the file and select Properties (Windows) or