The ultimate audio converting tool. Xilisoft Audio Converter is an all-in-one audio converter and extractor, allowing you to both convert between different format audio files AND extract audio from video files to different formats. Xilisoft Audio Converter supports many video, high-definition (HD) video, and audio file types including AVI, MPEG, WMV, MP4, FLV, MKV, H.264/MPEG-4 AVC, AVCHD, MP3, WMA, WAV, AAC, FLAC, OGG, APE, among many others.