To remove duplicates from CSV files, you can rely on the SysInfo CSV Duplicate Remover tool, especially when you’re working with large datasets. Start by adding your CSV files or folders into the tool. It allows you to preview every record so you know exactly what your file contains. Then choose the fields—like Name, Email, ID, or any column—that should be used to detect duplicates. You can also enable case-sensitive matching if needed. After you select a destination folder, the tool processes the files and generates duplicate-free CSV files while preserving the structure of your data.
Read more: https://www.sysinfotools.com/csv-duplicate-remover.php