Looking to protect your Yahoo emails from accidental loss or server issues? The Yahoo Backup Tool lets you save your important messages from Yahoo directly to your PC or hard drive. It supports backing up emails with all attachments and can export them into many formats like DOC, MSG, HTML, MBOX, and more so you can open them in different applications. It also offers filters to back up emails by date range, helping keep your archive organized. Additionally, the tool can skip items that were already backed up, saving time when you run the process again.

For more: https://www.msoutlookhelp.com/yahoo-backup/