SYSessential OST to PST Converter provides the user with an easy-to-use tool for a seamless transfer process of emails in Outlook. This application has been developed for the purpose of transferring emails in OST format to PST without any loss of data and preserving the original content of the emails, mailbox data, and structure. One can use the application to convert emails stored in the Outlook PST format to another format, such as EML, EMLX, MSG, NSF, and PDF. In addition, the program will aid in recovering orphaned OST files. Accurate recovery of lost or corrupt mailbox data is guaranteed through the program. It comes with an inbuilt preview tool that enables users to examine data in the mailbox before proceeding to convert.