EdbMails OST to PST converter is an excellent tool to recover and export all the contents to PST file format. It also allows you to export the OST to few other popular file formats such as MHT, HTML and EML. With the free version you can recover the entire OST file contents and convert 30 mail items to PST, Office 365 or live Exchange. The tool supports recovery of almost all EDB files including password protected and highly encrypted OST files without needing any encryption keys. As an additional advantage, you can make use of plenty of filter options to exclude or include certain folders or convert based on specific parameters such as Date, To, Cc, Attachments and so on. You definitely need to try this tool if you are stuck with the OST file recovery and conversion to PST.