This tutorial will teach you how to export an MP3 from Premiere Pro. An MP3, or .mp3, is a common codec and file extension for digital audio files. Because of their small file sizes, MP3s are generally used in the web delivery of content but they can lack the robust quality an uncompressed WAV file can give you. So depending on what you’re creating you may need to output an .mp3. Follow these steps and you’ll be able to export an MP3 from Premiere Pro in less than a minute.