Your computer might lack the HEVC (High Efficiency Video Coding) extension.
MP4 . Since this is a standard naming format for videos recorded on iPhones or digital cameras, 1. Transferring the File to Your Computer IMG_7239MP4
If you need to turn this MP4 into a GIF or a different video format (like MOV), VLC Media Player has a built-in "Convert/Save" feature under the Media menu. 4. Fix Playback Issues If the file won't open or has "no sound": Your computer might lack the HEVC (High Efficiency
Use AirDrop for the fastest wireless transfer, or connect via USB and use the Photos app or Image Capture . Transferring the File to Your Computer If you
Move the file to an external hard drive if it is part of a large library, as video files quickly consume system memory.
MP4 files from modern phones can be quite large (especially if shot in 4K).