What is .MK3D file extension?
.MK3D file extension is a known file type. This section of easyfileopener.com tells you everything you need to know about this extension.
Stereoscopic 3D video file created in the Matroska 3D (MK3D) format, which is used for storing 3D content; uses the standard .MKV container but includes a StereoMode field for the specific format of the enclosed 3D video (e.g., side by side (left eye is first), top-bottom (right eye is first), etc.).
You can see a list of software programs here on easyfileopener.com that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.