Right-click the file, select Properties , and click the Details tab. You may find the "Date Created," which can help you remember when it was recorded. On Mac: Right-click and select Get Info .
If this is a personal video (like a security camera clip or a screen recording), it's best to rename it to something recognizable: Select the file and press (Windows) or Enter (Mac). Ajb08406 mp4
The .mp4 extension is a universal container format compatible with almost all devices. Right-click the file, select Properties , and click
Use VLC Media Player or Windows Media Player. Right-click the file
How to add more information to a video file or .mp4 file? - FileBot
If you found this file online or received it from an unknown source: