An MBOX file is simple text mail and any user can open and read it on the MailsDaddy Free MBOX viewer tool. This GUI application allows users to load bulk data and read the email on the right side of the pane. This freeware MBOX reader tool supports all MBOX-based email clients and allows to open any MBOX data.
The software does not require any additional programs to read MBOX files as well as can be easily installed on any Windows machine. The plus point of the software is the upgrade option by which the user can transfer data from MBOX to PST, Office 365, etc as and when they need it.