The best way to consolidate PST files in Outlook is by using the Regain Outlook PST file Merger Tool. This intuitive software allows you to merge multiple PST files into one effortlessly, preserving all your important data like emails, contacts, calendars, and tasks. Whether you're working with ANSI or UNICODE PST files, this tool handles them seamlessly, ensuring no data is lost. It also eliminates duplicates during the merge process, maintaining a clean and organized file. With its user-friendly interface, you can combine PST files quickly without needing Microsoft Outlook installed. Consolidate your Outlook data efficiently with this reliable and secure solution.