If it won't play, you can use tools like VLC Media Player to convert it to a different format.
💡 If you want to find out where the file originally came from, you can often check your browser's download history by pressing Ctrl + J (Windows) or Cmd + Shift + J (Mac). downloadfile.mp4 (2)
Only open files from trusted websites. Generic names like downloadfile.mp4 are sometimes used by malicious sites to hide the file's true content. If it won't play, you can use tools
You may have clicked a download link twice or already have a file named downloadfile.mp4 in your Downloads folder . If it won't play