Reply To: How to Open .mbox File Type Extension?

Hi Sandra,

First of all, let me tell you about MBOX files. It is a mailbox file which stores emails in a concatenated manner as your friend said. It is supported by many email applications like Thunderbird, Mac Mail, Eudora, Entourage, etc. You can use any of these applications to open MBOX file. I would prefer you to use Thunderbird.