17-11-2019-88155803.mp4

: If the file won't play, it may be using a proprietary H.264+ or H.265 codec common in security systems; VLC can usually decode these.

Knowing the location or context of the video would help in identifying its significance. 17-11-2019-88155803.mp4

: Use this to find the metadata . It will tell you the exact camera model, resolution, frame rate, and the precise millisecond the recording started. : If the file won't play, it may be using a proprietary H

: The string of numbers (88155803) often corresponds to the specific second or frame count relative to the start of the recording session on the DVR's hard drive. : If the file won't play