Stellar Converter for OST can convert very large-sized OST files without facing any issues such as lag, software freezing, or crash. The software converts the OST file efficiently and extracts the mailbox items with 100% precision. It extracts the emails, attachments, contacts, calendars, tasks, notes, journals, etc., including the deleted emails. The tool preserves the original structure of the mailbox data and allows the user to sort and organize the emails by Date, From, To, Subject, Type, etc. It shows an enhanced preview of the mailbox data after converting the OST file. It allows the user to click a folder, email, or other items displayed in the Preview windows to see the contents. The Mailbox Preview feature helps verify and save the specific items from the OST. The software can convert the encrypted OST file, thereby enabling access to the user's mailbox data without decryption. It helps in situations wherein a user faces an issue while attempting to open an encrypted OST file, or the user has lost the decryption key. Stellar Converter for OST can extract the mailbox data in multiple file formats, including PST, MSG, EML, RTF, HTML, or PDF. Multiple file format option allows the user to access the mailbox data in different applications such as Microsoft Outlook, Internet browser, PDF reader, etc. Stellar Converter for OST can save the