TSV (Tab-Separated Values) is a popular format for data representation, and it's used to store large amounts of data in a structured manner. However, sometimes you may need to add a new column to your existing TSV data. The process can be time-consuming and error-prone if you're doing it manually, especially if you have a large amount of data. That's why our online tool, the TSV Columns Inserter is designed to help you quickly and easily add new columns to your TSV data.