Download OST to PST Conversion Software if you want to recover data from outlook OST file and make simple conversion OST to PST file with full attachments- Inbox, Outbox, Sent Items, Deleted Items, Draft, Journals, Tasks, Calendars, Notes & Contacts. With the help of OST File Conversion Software you can convert OST File to PST, EML, MSG or HTML formats. It allows you to open outlook OST File into outlook file.