Converting Office 365 data to MBOX becomes very easy with the SysInfo Office 365 Backup Tool. The process starts by logging into your Office 365 mailbox through the software, which then displays all your folders in an organized preview. From here, you can tick only the data you want—whether it’s your inbox, sent items, or specific folders. The tool also allows you to apply filters such as skipping previously migrated emails, removing duplicates, or selecting data from a specific date range. After choosing MBOX as the output format, the software downloads and converts your selected emails into MBOX files while preserving attachments, metadata, and folder hierarchy. This makes it simple to switch to MBOX-supported email clients without losing formatting or structure.