If you're looking for a way to convert OLM to PST files, the manual method involves using Outlook for Mac to export emails as PST—but this has limitations, like only working on Mac and possibly missing some data. A much better and hassle-free solution is DRS Softech OLM Converter Tool, which quickly converts OLM files to PST with all metadata intact, supports batch conversion, and works on Windows. Plus, it preserves folder structure and attachments, making it a reliable choice over manual methods.

https://www.drssoftech.com/olm-converter/