PST File Converter software is the best tool to export emails from PST file to OLM file format directly without any data loss. This software can migrate multiple Outlook PST files to mac Outlook .olm file format with all emails, contacts, calendars, tasks, and other items along with attachments. There is no file size limitation, you can convert a large size of PST file to OLM file format without any data loss. During the process, the software keeps all the folder structures without any changes and data loss. It allows you to batch export emails from PST file to OLM file format without Outlook installation. It was compatible with all the latest and below versions of MS Outlook and Windows OS including Windows 11. You can also use the free demo version of the software any cost.