> For the complete documentation index, see [llms.txt](https://docs.graphite-note.com/graphite-note-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.graphite-note.com/graphite-note-documentation/datasets/data-sources/import-data-from-csv-file/re-upload-or-append-csv.md).

# Re-upload or append CSV

If you've collected additional data related to your previously uploaded CSV file or there have been changes to the existing data, you can use the re-upload option. This allows you to update or append new data to your existing dataset. Expanding your dataset with more records can benefit your machine learning model, but the impact depends on the quality and relevance of the new data. Learn more about the benefits of dataset expansion [here](/graphite-note-documentation/datasets/prepare-your-data/expanding-datasets.md).

#### How to Re-upload a CSV File:

1. **Go to the Datasets List**:
   * Navigate to the list of datasets.

<figure><img src="/files/eEBi1vKqjbz6bq0ZYoUS" alt=""><figcaption></figcaption></figure>

2. **Select the Dataset**:

* Choose the dataset you wish to re-upload.

<figure><img src="/files/3RcwdlDngX2SDVj7lsRd" alt=""><figcaption></figcaption></figure>

3. **Select Re-upload**:

* Click on the 'Re-upload' option.

<div align="left"><figure><img src="/files/wGBqwTIDFKJqeY1iheUM" alt="" width="563"><figcaption></figcaption></figure></div>

4. **Choose Options and upload**:

* **Decide on data append:**
  * Depending on your needs, you can choose 'Append data' to add new records to the existing dataset. If 'Append data' is turned off, the new dataset will overwrite the existing
* **Upload Your File**:
  * Select or drag and drop your CSV file. Ensure the file has the same column structure as the previously uploaded file.
* Click **Update** to complete the re-upload process.

<div align="left"><figure><img src="/files/QQQId9ATicLo3qwACSVN" alt="" width="563"><figcaption></figcaption></figure></div>


---

# 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.graphite-note.com/graphite-note-documentation/datasets/data-sources/import-data-from-csv-file/re-upload-or-append-csv.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.