If you were looking for technical information on the extension, that simply indicates the file is the second part of a "split archive." You would need all parts (e.g., .001, .002, .003) to successfully extract the original video file.
These productions (often by circles like TBW) use low-budget digital effects, latex or spandex costuming, and stylized "brainwashing" sequences involving flashing lights, headsets, or futuristic chairs [1, 2]. Why People Follow This Genre
Their power comes from suits, gadgets, or alien heritage.