I would like to suggest you use vMail OLM to PSTConverter software that can convert OLM file into PST file format. It can easy to Converts all OLM email components, such as mails in the Inbox, Contacts, Calendars, tasks, notes, etc. This software saves and recovers into a new file of any of these formats: PST, EML, EMLX, MBOX, MSG file format.
