Check out the MacSonik MBOX to CSV Converter for Mac, which can quickly and securely convert MBOX to CSV file format. MBOX files can be converted to a variety of file formats, including PST, MSG, CSV, Yahoo, Gmail, Hotmail, and other file formats & email clients. This Software will export email items such as – inbox, outbox, sent mail, note, task, etc. It can also offer a free trial for a user to check its performance and how it works, in which the user can convert initial 50 items from mbox to CSV.