Are you in wonder? How to extract OST to PST Outlook 2016 by eSoftTools? The first thing that should be done is open the Software, add the OST file or folders in the Software, select the required mail folders for extraction to PST, click on Convert PST, and then Choose the PST file format for extraction. Click on the Convert button to start the process, It will successfully extract the OST File to the PST Outlook File. This Software shares a very easy step, anyone can follow the steps without having high-tech knowledge.