Handling Excel entries with special characters during a Mail Merge requires attention to detail to ensure data integrity. Before importing your Excel file into Word for the Mail Merge, review your data for special characters that might conflict with Word’s formatting or cause errors. Use Word's 'Find and Replace' feature after importing your data to correct any discrepancies resulting from special characters. Additionally, it's essential to avoid using complex or non-standard characters in column headers as they might not be recognized correctly during the merging process. This proactive approach ensures a smoother Mail Merge process and prevents potential data mishandling.