Files with unknown_video file extension are related to the Youtube API.
Software that open unknown_video file
UNKNOWN_VIDEO file extension - Youtube API video information
What is unknown_video file? How to open unknown_video files?
File type specification:
The unknown_video file extension is associated with the Youtube API and web pages built on this application programming interface.
The unknown_video file stores some kind of information about video data.
The default software associated to open unknown_video file:
Company or developer:
Google Inc.
Youtube API allows users to bring the YouTube experience to their webpage, application, or device.
List of recommended software applications associated to the .unknown_video file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open unknown_video file, edit unknown_video file, convert unknown_video file, view unknown_video file, play unknown_video file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with unknown_video file - Youtube API video information
Click on the software link for more information about Youtube API. Youtube API uses unknown_video file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).