I received an error message while opening a file with GIMP

Hi guys,
I received an error message while opening a file with GIMP.
The screenshot of the error message is as under. It has declared the file as an unknown file. I do not know the reason behind it.
Have you any idea for the error?
Please help.

GIMP Message
Opening ‘/home/tito/Videos/Dr. Cox NoOoOOOOOOO.mp4’failed:
Unknown file type
