The ViceVersa PST Split and Merge Software is simplest and safest way.

The ViceVersa PST Split and Merge Software is a professional solution for splitting huge PST files into multiple PST files and merging two or more PST files into single PST files without any hassle. Users can run this tool on any Windows OS version like 11, 10, 8.1, 8, 7, XP, and Vista because it is a Windows-based tool. This application splits and merges all Outlook properties like email, attachments, contacts, notes, messages, tasks, etc. It provides a free demo version for all users so users can try it and examine the tool. It supports all MS Outlook versions Like 2021, 2019, 2016, 2013, 2010, 2007, etc. It splits and merges password-protected PST files. Users can use this software with ease even without technical knowledge. All Outlook file types, including ANSI and UNICODE, are supported.  It is among the best tools for splitting PST files and dividing large PST files into several PST files without needing MS Outlook.