Yes, you can convert MSG files to HTML on a Mac using software Aryson MSG file Converter. This tool allows you to convert Outlook MSG emails into multiple formats, including HTML, PDF, EML, PST, and more. It preserves all email content, attachments, metadata, and formatting. The software supports batch conversion, letting you process multiple MSG files at once, saving time and effort. It also works without Outlook installed and can migrate emails to Gmail, Office 365, Yahoo, and other email clients. A free trial is available for testing, though full conversion requires the licensed version.