Zamzar

• 1). Load Zamzar. (see Resources).
  
  
• 2). Click "Choose File" and track down the AAC file you want to convert into a MP3. Then choose "MP3" as your output format.
  
  
• 3). Give Zamzar your email and click the "Convert" button. Check your email inbox; you'll receive a message with a link to the converted MP3 once the conversion finishes.
  
  

Mediaconverter

• 1). Load Mediaconverter in your preferred browser (see Resources).
  
  
• 2). Pick "Upload a file" and locate the AAC file. The file name appears under "Selected Files." Once that's through, select "MP3" as your output song format.
  
  
• 3). Click "Start" to begin converting the AAC. Once it completes, click on the MP3 link to receive your file.