> 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/updaterows.md).

# Update Rows

### Overview

The **UpdateRows** component updates all rows in a CSV file that match a provided filter. It allows users to modify values while maintaining the integrity of the dataset.

### Input Parameters

| Parameter     | Type      | Required | Description                                                                                                     |
| ------------- | --------- | -------- | --------------------------------------------------------------------------------------------------------------- |
| `withHeaders` | `boolean` | ✅        | Set to `true` if the first row represents column names (CSV header) and should be used to identify the columns. |

### Output Parameters

| Parameter | Type     | Description                     |
| --------- | -------- | ------------------------------- |
| `fileId`  | `string` | The ID of the updated CSV file. |

### Instructions

1. **Enable Column Header Usage (Optional)**
   * If your CSV file contains column headers in the first row, enable `withHeaders` to update rows based on column names.
   * Otherwise, updates will be performed based on column indices.
2. **Specify Filters and Updates**
   * Define conditions that identify which rows should be updated.
   * Provide new values for selected columns.
3. **Processing**
   * The component updates all matching rows in the CSV file.
   * The modified file is outputted with a new `fileId`.

***


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.appmixer.com/connector-configuration/utils/csv/updaterows.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.