Export the OST File to PST. You can use Cloud Migration OST to PST Converter Tool. It is the best tool to Export OST to PSTfile format such as exporting Outlook OST files to distinct File Formats and Email Providers in a few simple steps. The application is highly recommended to export Outlook OST to various file formats. It provides the facility to convert OST files to PST with maintaining folder hierarchy. Users can convert email attachments to PDF file format with the working demonstration. It is compatible with all Windows OS including Win 11. It comes with a Free demo version and Technical support.