To convert a PST file to MBOX, use the PST File Converter--a powerful tool designed for effortless and precise email conversion. This tool allows you to convert PST files into MBOX format while maintaining data integrity and folder hierarchy. It supports batch conversion of PST files and includes advanced filtering options to select specific emails based on date, subject, or sender. Additionally, the tool offers a preview feature to review email content before conversion and supports all versions of Outlook PST files, whether ANSI or Unicode.