The easiest way to open PST file in Exchange Online is by using the Advik PST Converter. This tool allows you to quickly and securely import all your Outlook PST data--including emails, contacts, calendars, and attachments--directly into your Exchange Online mailbox. It preserves the original folder hierarchy, formatting, and metadata, ensuring that your mailbox remains organized and intact. With its intuitive interface, even users with little technical knowledge can perform the migration in just a few clicks. Advik PST Converter simplifies the process, making it the most reliable and efficient solution to access PST files in Exchange Online without any hassle.