If you want to Convert OLM to PST file format, you can use this OLM to PST Converter Software. The tool easy to convert all email items such as emails, attachments, contacts, calendar, and account information, etc. This Software Maintain all emails properties like: CC, BCC, Date-Time, Subject & Attachments. You can also Export your OLM file data into Office 365 Account. this software provides data filter feature where you can easily filter your data. Use free demo version and see the original results.