You can use the Emailprohelp PST splitter Tool to add single or Multiple PST files for splitting them together. It has also an option to Remove duplicate items while splitting PST Files. You can divide and Break PST Files of any size based on the folder, Date, or Sender's Email ID. It supports PST Files of All Outlook Versions including Outlook 2019 and Office 365. Users can set a password to the Split or newly created PST Files. It has a User-Friendly Interface for a quick split of PSTs.