Sysinfo Yahoo Backup Tool is an easy and prominent software for backing up your Yahoo mailbox emails into PST, MBOX, CSV, EML, PDF, and other formats. It can move Yahoo emails into Office 365, IMAP, Gmail, and G Suite Accounts. Moreover, it supports migrating emails from single and multiple Yahoo accounts. Therefore, it comprises several features like a mail filter, removing duplicate emails, and maintaining proper folder hierarchy. It is compatible with all versions of Windows OS, including Windows 11.