If you are looking for a way to convert PST Files to MBOX on Windows, I suggest the SysInfo PST to MBOX Converter Tool, and check out the guide on how to convert PST to MBOX in simple steps. This tool allows you to convert Outlook emails, contacts, calendars, tasks, and other mailbox items without any file size limitation, making it suitable for both small and large PST files. One of the biggest advantages is that it maintains the original folder hierarchy, email formatting, metadata, and attachments throughout the conversion process. You can also perform selective migration using the Date Range filter, which is helpful when you don’t want to export the entire mailbox. The software supports PST files created by all major Outlook versions, including 2019, 2016, 2013, and earlier. Apart from converting Outlook PST files to MBOX, this software also lets you import PST files into popular email services like Gmail, Thunderbird, Yahoo Mail, and Office 365. You can also change PST files into other formats such as MSG, EML, PDF, EMLX, DOC, PNG, and more.