Free Video to MP3 Converter software (version 5.1.5.913) allows users to extract audio from video files and save it in MP3 format. The software supports a wide range of video formats including AVI, FLV, MP4, WMV, and more. Users can also choose the output quality of the MP3 file and customize the audio settings such as bit rate and sample rate. The software has a simple and user-friendly interface making it easy to use for all levels of users.