For better organization, rename the file to describe its content (e.g., Wedding_Dance_Aug2022.mp4 ) while keeping the .mp4 extension.
You can right-click the file in File Explorer and select "Open with" to choose Windows Media Player or the Movies & TV app. VID_20220829_214955_417.mp4
MP4 is a container format. If you have audio but no video, your system might be missing the specific video codec (like H.264 or H.265). Updating your media player usually solves this. For better organization, rename the file to describe