MARS Video & Audio Editor and Mixer is a comprehensive tool to edit both video and audio. from the main screen you choose the button "Video Tools" or "Audio Tools" to get started. MARS Video Editing: This app comes with a set of tools to edit video. You can trim, merge, or crop any video file. Also you can extract the audio from any video file and save it as MP3 or even you can change and replace the audio in any video file or mix it with any audio like a background music. You can convert any