Try OLM to PST Converter software to convert Mac OLM file into PST with all data items and attachments. The tool also converts OLM files to other file formats such as EMLX, PST, MBOX, EML, HTML, and PDF.
The OLM to PST converter tool offered various features like:
- Converts multiple OLM files to PST format
- There is no file size limitation (large or oversized) files can be converted
- Export OLM Calendar and Contacts to vCal and vCard file format.
- Import OLM file to Office 365 and a Live Exchange Server directly.
Visit here for more information about the software:- http://www.olm-converter.com/