MailsDaddy OST to PST Converter is an effective tool to convert OST to PST without Outlook, giving users full control over inaccessible OST files. It can recover OST files from corruption, orphaned mailboxes, or encrypted environments while preserving all data integrity. The software allows export into various formats like PST, MSG, EML, MBOX, RTF, and HTML. With features like batch conversion, PST file splitting, and advanced filtering, users can perform large-scale OST to PST conversion smoothly. The built-in preview option ensures that emails, contacts, calendars, and attachments can be checked before final export. Contacts can be saved in VCF/CSV and calendars in ICS format. With direct migration options to Office 365 and Live Exchange, this OST to PST Converter provides both recovery and enterprise-level migration capabilities, making it a complete solution.