The top-notch solution for backing up Hotmail(Outlook.com) emails to your local device is the Outlook Backup Software. This software backs up emails in multiple file formats, such as EML, PDF, EMLX, MBOX, and many more. The tool also migrates emails to Gmail, Yahoo, Office 365, and other email clients. You don’t need to install MS Outlook on your local device to run this software. It maintains folder hierarchy and data integrity during backups. Moreover, it has an easy user interface.