Softaken OST File Exporter software (version 3.0) is a tool designed to convert OST files to multiple file formats, including PST, EML, MSG, MBOX, and HTML. The software is compatible with all versions of Microsoft Outlook and Exchange Server. It allows users to preview and select specific items to export, such as emails, contacts, calendars, and attachments. The software also maintains the folder hierarchy and email properties during the conversion process.