The OST to PST Converter is designed as a direct application to extract data from Outlook’s offline, or OST, file and restore mailbox information by converting the mailbox items to an easy-to-manage PST file. The program is intended to retrieve e-mails, contacts, calendars, and attachments from the broken or lost connection to the original server and rebuild them with their original structure and integrity for secure storage and smooth migration. Additionally, it has a number of key features, including the ability to perform a detailed preview of the data before selection, restore corrupted files, and convert multiple files in one process, without limitations based on file size. In addition, the application supports the creation of output in other file formats,s including MSG, EML, and HTML, that are compatible with a wide variety of applications. The OST to PST Converter was designed for universal application and ease of use, and thus functions reliably when operated on any standard computer and provides a simple and easy-to-follow on-screen interface that provides guidance for the user throughout the use of the application. For this reason, it is an important and valuable tool for organizational IT Management and personal recovery of data.