The purpose of the MailConverterTools Yahoo Mail Backup Tool is to make the process of protecting and transferring Yahoo emails easier. Users can store mailbox data in a variety of file formats, such as PST, PDF, EML, MBOX, CSV, and HTML, straight to their system or an external disk. In addition to backup, it facilitates direct conversion to web-based and cloud-based systems, including iCloud, Office 365, Zoho, AOL, and Gmail. After downloading, the program offers helpful features like the ability to remove duplicate emails, filter emails for selective backups, and free up Yahoo server space. By maintaining the original folder structure, mailbox data is kept neat and accessible. By enabling users to back up emails with or without attachments, the tool also provides flexibility. Compatible with all major Windows versions, it offers a reliable and structured way to protect Yahoo mailbox data and access it in various formats whenever needed.