I tried a lot to recover OST in Outlook, but I was afraid that the data in my OST file might get corrupted. Then my brother told me about eSoftTools OST to PST Converter software, which I downloaded and tried. Downloading this tool is really a great idea and the features provided in it are also amazing. Apart from this, using this software you can convert OST files to Gmail, Yahoo Mail and Office 365.
This software has also been tested by humans, so there is no damage to the OST file by using this software and when you recover the post file, it also has the option of live preview. After downloading the software, you can also use the free demo provided in it. Also, using the free demo you can recover 25 emails from Outlook for free.