InFixi Outlook Convert OST to PST Software easily Extract data from corrupt OST File or convert outlook OST File into PST File with PST Split file option where you can Split PST File from 1 GB to 5 GB. With the help of Outlook OST to PST Conversion Software you can convert outlook OST to PST with full attachments- Inbox, Outbox, Sent Items, Deleted Items, Draft, Journals, Tasks, Calendars, Notes, and Contacts. It works on OST version up to 2013