Honeym00n.mkv.mp4 -

Right-click the file and check the "Type of file" in your system settings to confirm it is actually a video and not an application ( .exe , .scr , or .bat ).

If you have encountered this specific file on your device or a cloud drive unexpectedly: Especially if the source is unknown. honeym00n.mkv.mp4

The presence of both .mkv and .mp4 is redundant. In most operating systems, the "real" extension is the last one ( .mp4 ). The .mkv is likely part of the filename itself to trick users who expect a specific video container. Right-click the file and check the "Type of