I have an OLM backup from Mac Outlook, and I want to use it in Apple Mail. How can I convert it into a supported format like MBOX?

You could smoothly access OLM file data in Apple Mail by simply converting it to MBOX format. The best tool to do this is DataVare OLM to MBOX Converter. It quickly converts all OLM emails, attachments & other mailbox items into MBOX format with complete precision. After conversion, you can directly import the MBOX files into Apple Mail and access all Outlook & Windows OS for Mac data effortlessly. It ensures safe migration without any loss of data, email formatting & folder arrangement, making it perfect for smooth email accessibility on macOS. Furthermore, download the free demo version now and experience smooth performance with all essential features before you buy.