To split oversized Outlook files, the Regain PST Splitter Tool is a great option. This advanced PST file splitter effectively splits large PST files into smaller, manageable pieces, enhancing Outlook performance and organization. You can split by file size, date range, or by sorting emails by sender, recipient, or subject; Regain PST Splitter has flexible options available to suit your requirements. It keeps all the critical email information, such as attachments, timestamps, and headers, intact, ensuring data integrity. UNICODE and ANSI compatible, the software supports all versions of Outlook and operates without any issues, making it the ideal solution for handling large PST files securely and effectively.