> For the complete documentation index, see [llms.txt](https://docs.flowiseai.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flowiseai.com/integrations/langchain/document-loaders/csv-file.md).

# Csv File

<figure><img src="/files/dPVy7eLSNPMj6l2uZRGh" alt="" width="271"><figcaption><p>Csv File Node</p></figcaption></figure>

CSV (Comma-Separated Values) is a simple file format used to store tabular data, such as a spreadsheet or database. This module provides functionality to load and process CSV files within your workflow.

This module provides a versatile CSV document loader that can:

* Load single or multiple CSV files
* Support both base64-encoded files and files from storage
* Extract specific columns or entire content
* Process large datasets efficiently
* Handle custom metadata management

## Inputs

* **CSV File**: The CSV file(s) to process (.csv extension required)
* **Text Splitter** (optional): A text splitter to process the extracted content
* **Single Column Extraction** (optional): Name of a specific column to extract
* **Additional Metadata** (optional): JSON object with additional metadata to add to documents
* **Omit Metadata Keys** (optional): Comma-separated list of metadata keys to omit from the default metadata

## Outputs

* **Document**: Array of document objects containing metadata and pageContent
* **Text**: Concatenated string from pageContent of all documents

## Features

* Multiple file processing support
* Single column extraction capability
* Efficient handling of large datasets
* Customizable metadata handling
* Storage integration support
* Base64 and blob handling capabilities