The best way to split large PST files into smaller parts efficiently is by using a professional tool like MailsDaddy PST Split Tool. It is designed to handle oversized PST files without data loss while maintaining folder hierarchy and email integrity. This tool allows users to split PST files by size, date, folder, or email ID, providing flexibility in managing Outlook data. It smoothly works with ANSI, UNICODE, Password protected, and Damaged PST files. This easy-to-use software supports all MS Outlook versions including Outlook 2019, 2016, 2013, and all earlier versions. Additionally, the demo version enables users to test the software's functionality by splitting a limited number of items per folder before opting for the full version.