This tool is used to convert Windows Media Video (wmv) to Audio Video Interleave (avi).

Windows Media Video (WMV) is a series of video codecs and their corresponding video coding formats developed by Microsoft.

AVI is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows software. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback.