# Text File

<figure><img src="https://823733684-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F00tYLwhz5RyR7fJEhrWy%2Fuploads%2Fgit-blob-dcb2d13ed09e389dcee09a1cbd902b0e86c0d277%2Fimage%20(89).png?alt=media" alt="" width="322"><figcaption><p>Text File Node</p></figcaption></figure>

The Text File loader enables you to load and process content from various text-based file formats. It supports multiple file types and provides flexible options for text splitting and metadata handling.

## Features

* Support for multiple text-based file formats
* Multiple file loading capability
* Text splitting support
* Customizable metadata handling
* Storage integration support
* Base64 file handling
* Multiple output formats

## Supported File Types

The loader supports a wide range of text-based file formats:

* Text files (.txt)
* Web files (.html, .aspx, .asp, .css)
* Programming languages:
  * C/C++ (.cpp, .c, .h)
  * C# (.cs)
  * Go (.go)
  * Java (.java)
  * JavaScript/TypeScript (.js, .ts)
  * PHP (.php)
  * Python (.py, .python)
  * Ruby (.rb, .ruby)
  * Rust (.rs)
  * Scala (.sc, .scala)
  * Solidity (.sol)
  * Swift (.swift)
  * Visual Basic (.vb)
* Markup/Style:
  * CSS/LESS/SCSS (.css, .less, .scss)
  * Markdown (.md, .markdown)
  * XML (.xml)
  * LaTeX (.tex, .ltx)
* Other:
  * Protocol Buffers (.proto)
  * SQL (.sql)
  * RST (.rst)

## Inputs

### Required Parameters

* **Txt File**: One or more text files to process
  * Accepts files from local upload or storage
  * Supports multiple file selection

### Optional Parameters

* **Text Splitter**: A text splitter to process the extracted content
* **Additional Metadata**: JSON object with additional metadata to add to documents
* **Omit Metadata Keys**: Comma-separated list of metadata keys to exclude
  * Format: `key1, key2, key3.nestedKey1`
  * Use \* to remove all default metadata

## Outputs

* **Document**: Array of document objects containing:
  * metadata: File metadata and custom fields
  * pageContent: Extracted text content
* **Text**: Concatenated string of all extracted content

## Document Structure

Each document contains:

* **pageContent**: The main content from the text file
* **metadata**:
  * Default file metadata
  * Additional custom metadata (if specified)
  * Filtered metadata (based on omitted keys)

## Usage Examples

### Single File Processing

```json
{
  "txtFile": "example.txt",
  "metadata": {
    "source": "local",
    "category": "documentation"
  }
}
```

### Multiple Files Processing

```json
{
  "txtFile": ["doc1.txt", "doc2.md", "code.py"],
  "metadata": {
    "batch": "docs-2024",
    "processor": "text-loader"
  },
  "omitMetadataKeys": "source, timestamp"
}
```

## Storage Integration

The loader supports two file source modes:

1. **Direct Upload**: Files uploaded directly through the interface
2. **Storage Integration**: Files accessed through the storage system
   * Format: `FILE-STORAGE::filename.txt`
   * Supports organization and chatflow-specific storage

## Notes

* Handles both single and multiple file processing
* Supports base64 encoded file content
* Automatically handles different file encodings
* Memory-efficient processing of large files
* Preserves file metadata when needed
* Supports text splitting for large documents
* Handles escape characters in output text
* Integrates with organization-specific storage

{% hint style="info" %}
This section is a work in progress. We appreciate any help you can provide in completing this section. Please check our [Contribution Guide](https://github.com/FlowiseAI/FlowiseDocs/blob/main/en/integrations/langchain/document-loaders/broken-reference/README.md) to get started.
{% endhint %}


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