How do I convert Outlook to CSV without any data loss? If you are also searching for a solution to this query, them download Mac PST File Converter. It’s a simply designed tool that allows both technical and non-technical users to easily resolve their how do I convert Outlook to CSV format query. Use its batch mode option to convert unlimited PST files to CSV file at once. Free demo tool can be downloaded on all Mac editions and used to help users in fixing how do I convert Outlook to CSV issues.