Is there no way to play and open WLMP project file? Is it possible to convert WLMP file to video like AVI, WMV, MP4, MPG, WebM, FLV, 3GP or convert WLMP file to audio like MP3? In fact, it’s dead easy following the detailed guide below to solve all the headache and time-consuming issues. WLMP file is not valid video file and cannot opened and played by any media players like VLC, QuickTime, VLC, iPod, iPad, iPhone and cannot upload to YouTube, Facebook for sharing. It may contain movie transitions, music, and effects as well as links to digital photos or videos. wlmp file is a movie project file created by Microsoft Windows Live Movie Maker.