If you attempt to open a WLMP file, it may be difficult that it’s incompatible with common video players or editors.
FileMagic addresses this problem by providing an intuitive interface that makes easier the process of handling WLMP files. https://www.filemagic.com/en/video-files/wlmp-file-extension/what-to-do-when-wlmp-files-won-t-open/