Videomaker – Learn video production and editing, camera reviews › Forums › General › Video and Film Discussion › how to fix mts file? › Try playing it in VLC player.
Try playing it in VLC player. Try importing it into your edit program. Try running it through Handbrake. Try using Google Chrome Video Converter (on-line) to change your file to a format such as AVI.
None of these will work if the file is actually corrupt, but all are worth a try.