The most effective way to combine multiple PST files into one is by using the MailsDaddy PST Merge Tool. This advanced tool is designed to help Outlook users easily merge multiple PST files into a single PST without any hassle. You can merge all items, including emails, attachments, calendars, and contacts without data corruption or loss. Its intuitive interface smooths the merging process and maintains the original folder structure and metadata. Additionally, it offers a unique feature to delete duplicate items before starting the combining process. This reliable software supports all PST files like ANSI, Unicode, Corrupted, Damaged, and others. It smoothly works with all versions of MS Outlook and Windows versions from the latest to the oldest versions.