Solved: How do I fix corrupted MP4 video file that doesn’t open problem?

Problem: MP4 is a digital media container with file extensions included .mp4, .m4a, .m4p, .m4b, .m4r, .m4v saved in a hard drive, SD card, memory card, pen drive, etc., used to store audio, videos, graphics, and subtitles, and still images. Sometimes while trying to play the MP4 video file, we get the error “the file …