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Insert CSV Column
Insert a new column into CSV data
By Craftisle Team
About Insert CSV Column — Free Online Tool
Insert a new column into CSV data at a specified index. Header row gets column name, data rows get default value. Useful for adding new fields, data transformation, and CSV restructuring.
How to Use Insert CSV Column — Step by Step
- Paste CSV data
Type or paste CSV data (with header row).
- Set options
Choose separator, column index (1-based), column name (for header), default value (for data rows).
- Insert Column
Click Insert Column. New column is inserted at specified index.
- Copy or download
Copy the CSV or download as a .csv file.
Use Cases for Insert CSV Column
Add new fields
Insert a new column for data you want to add.
Data transformation
Restructure CSV by inserting columns at specific positions.
Prepare for import
Add required columns before importing to database.
FAQ — Insert CSV Column Free Online Tool
What is 'Column Index'?
1-based index. Column 1 = first column, Column 2 = second column, etc.
What happens to header row?
Header row gets the column name. Data rows get the default value.