I needed a simple way to open my old Mac Outlook emails on a new platform. MacGater OLM Converter did exactly what I hoped for, without any complications. It helped me import OLM files to Zoho Mail, and everything transferred with no loss--emails, attachments, dates, and subjects were all safe. You can also apply filters to export just the messages you want. It works even with corrupted OLM files and supports full folder conversion. The best part is you don't need internet, and it runs well on all the latest macOS versions.