Trying to open a WLMP file, it may be difficult that it won't open with common video players or editors.
FileMagic takes care of this by providing an intuitive interface that streamlines the process of opening WLMP files. https://www.filemagic.com/en/video-files/wlmp-file-extension/what-to-do-when-wlmp-files-won-t-open/