Video Dec 21, 10 09 54 Am.mp4 File

Right-click the file and select Get Info . Look under "More Info" for dimensions, codecs (usually H.264 or HEVC), and duration.

Since the filename "Video Dec 21, 10 09 54 AM.mp4" follows the default naming convention for or macOS screen recordings, here is how you can identify its "proper features": 1. Technical Metadata (The File's Features) Video Dec 21, 10 09 54 AM.mp4

If you are asking about a specific software feature that generated this video: Right-click the file and select Get Info

If "proper feature" refers to what is happening in the video, the timestamp suggests it may be related to: codecs (usually H.264 or HEVC)