Unique Quality name of KDETools OST o PST Converter tool is most reliable & easy way to convert lost data from orphaned OST file and convert email from outlook OST file into PST with all relevant folders:- Inbox, Draft, Journals, Tasks, Calendars, Outbox, Sent Items, Deleted Items, Notes, and Contacts. It supports various formats like PST, MSG, EML, and vCAl, HTML, MBOX and EMLX. And apart from all this it also supports the cloud-based application such as Office 365 and Live Exchange Server. You can avail the free Demo version of this software. At a time you can convert single as well as multiple files in a few little moments included with the email, notes, attachment, contact, sent item, delete item, journals ( To, CC, Bcc, From, Subject, Object, Date and Time).