> For the complete documentation index, see [llms.txt](https://docs.appmixer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.appmixer.com/connector-configuration/utils/csv/renamecolumn.md).

# Rename Column

### Overview

The **RenameColumn** component renames a column in a CSV file. This is useful for standardizing column names before processing or integrating CSV data with other systems.

### Input Parameters

| Parameter       | Type     | Required | Description                                                |
| --------------- | -------- | -------- | ---------------------------------------------------------- |
| `fileId`        | `string` | ✅        | The ID of the CSV file where the column should be renamed. |
| `delimiter`     | `string` | ✅        | The character used to separate columns (default: `,`).     |
| `columnName`    | `string` | ✅        | The name of the column to be renamed.                      |
| `newColumnName` | `string` | ✅        | The new name for the column.                               |

### Output Parameters

| Parameter | Type     | Description                                     |
| --------- | -------- | ----------------------------------------------- |
| `fileId`  | `string` | The ID of the CSV file with the renamed column. |

### Instructions

1. **Specify CSV File and Delimiter**
   * Provide the `fileId` of the CSV file containing the column to be renamed.
   * Set the correct `delimiter` (e.g., `,`, `;`, `\t`).
2. **Rename the Column**
   * Enter the current column name in `columnName`.
   * Specify the new column name in `newColumnName`.
3. **Processing**
   * The component will rename the specified column in the CSV file.
   * The modified file will be outputted with a new `fileId`.

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