Users may need to split their PST files for several reasons. One common reason is to manage and organize their Outlook data more efficiently. Large PST files can become cumbersome and slow down Outlook performance. By splitting these files into smaller, more manageable parts, users can improve the performance of Outlook and avoid potential issues like file corruption. Additionally, splitting PST files can help users stay within the storage limits imposed by their email service provider or system administrator.

For splitting PST files, users can consider using the Advik PST Splitter Tool. This tool allows users to split large PST files into smaller segments based on size, date, folder, or other criteria. It helps users manage their Outlook data more effectively, ensuring optimal performance and organization.