Everyone works in the different business organisations and there they save their data in the OST file format. But sometimes their OST file got corrupt and at that time they need to convert OST file into PST file format with all the attachments. So its not posible with the help of manual solution. You can perform this conversion task only with the help of third party software as it is mainly designed to recover damaged OST file. No need to have a lot of technical knowledge to run this software. So you should use OST Recovery software to convert the ost file into PST file format.