Can I use custom names for my columns?

Yes, select the 'Custom Headers' mode and enter your desired column names separated by commas in the provided text field.

Does this tool support file formats other than CSV?

The tool is optimized for CSV input, but you can choose to output the final result in CSV, Table, or JSON formats.

What happens if my data already has headers?

The tool is designed for header-less data; if your data already contains headers, you may need to remove them first to avoid duplicate or conflicting row entries.

Can I preview the headers before applying them?

Yes, enable the 'Preview Headers Only' checkbox to see how the headers will be generated without modifying your original data.

How do I handle different CSV delimiters?

You can select the appropriate separator from the 'CSV Separator' dropdown, including options for comma, semicolon, tab, space, or pipe.

Elysia Tools

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Data Processing

Header Adder

Add headers to CSV data that lacks column names. Perfect for data import from databases, API responses, or numeric datasets that need proper column identification. Features: - Add custom headers to header-less data - Auto-generate intelligent headers - Support for various header naming conventions - Preview headers before applying - Multiple header format options - Support for existing data detection - Batch processing capabilities Common Use Cases: - Fix database exports without headers - Process API response data - Prepare numeric datasets for analysis - Standardize data column naming - Create proper CSV structures - Data format normalization

Execution

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Inputs

Set the required fields, then run the tool.

7 options

ContentPaste or type the main input values.3

CSV ContenttextareaRequiredCustom HeaderstextOptionalEnter headers separated by commas. Only used when Custom Headers mode is selected.Auto PrefixtextOptionalPrefix for auto-generated headers (e.g., Column, Field, Data). Used in Auto and Template modes.

SettingsAdjust formats, ranges, numbers, and modes.3

Header ModeselectRequiredCSV SeparatorselectRequiredOutput FormatselectRequired

TogglesEnable or disable optional behavior.1

Preview Headers OnlycheckboxOptionalEnabled when checkedOnly show the generated headers without modifying the data

Result

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Samples

Header Adder

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Key facts

Overview

When to use

How it works

Use cases

Examples

1. Standardizing Database Exports

2. Formatting Numeric Datasets

FAQ

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