To convert MBOX to PST for Mac, you'll need a reliable third-party tool since Outlook for Mac does not support direct MBOX to PST conversion. First, export your MBOX files from your email client (like Apple Mail or Thunderbird). Then, use a professional converter tool that supports macOS and is specifically designed to convert MBOX to PST for Mac. These tools efficiently scan MBOX files and export all emails, attachments, and folders into PST format. Once the conversion is complete, you can import the PST file into Outlook on Windows or Mac using the Import/Export feature. Always ensure you use a trustworthy and compatible tool to maintain data integrity during the process.