The Magic AAC to MP3 Converter software's main window will allow you to add new files to be encoded and to select a custom target folder of your choice. 

Magic AAC to MP3 Converter will enable you to control all the file actions you want to perform from this menu. 

The Magic AAC to MP3 Converter software's Settings dialog will allow you to adjust the WMA Encoder's bit rate and to enlarge the scan file type list by adding new audio extensions.