Use Kernel for OST to PST is an advanced conversion software to repair corrupt or inaccessible OST files with in a matter of minutes. This is one of the best OST to PST tools to repair OST files and then provides the option to convert OST files to PST files, OST to Office 365 or to other email servers and web-based email apps. The tool supports all modern versions of MS Outlook (2016), Exchange (2016), Outlook Express (6.0) & Windows OS (10).