The best way to split a PST file is to use a reliable professional tool instead of manual methods. Large PST files often slow down Outlook and increase the risk of corruption, and Outlook does not offer an effective built-in option to split them safely.

Advik PST Splitter Toolis an easy and secure solution to split large PST files without data loss. It allows you to split a PST file by file size, date range, folders, or sender email IDs. The tool scans all mailbox data, including emails, attachments, contacts, and calendars, and keeps the original folder structure and formatting intact. It also offers options to remove duplicate emails and protect new PST files with a password. This makes Advik the safest and most efficient way to split PST files and keep Outlook running smoothly.