> ## Documentation Index
> Fetch the complete documentation index at: https://langchain-5e9cc07a-preview-opensw-1778865734-3544a9b.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Unstructured integrations

> Integrate with Unstructured using LangChain Python.

> The `unstructured` package from
> [Unstructured.IO](https://www.unstructured.io/) extracts clean text from raw source documents like
> PDFs and Word documents.
> This page covers how to use the [`unstructured`](https://github.com/Unstructured-IO/unstructured)
> ecosystem within LangChain.

## Installation and setup

If you are using a loader that runs locally, use the following steps to get `unstructured` and its
dependencies running.

* For the smallest installation footprint and to take advantage of features not available in the
  open-source `unstructured` package, install the Python SDK with `pip install unstructured-client`
  along with `pip install langchain-unstructured` to use the `UnstructuredLoader` and partition
  remotely against the Unstructured API. This loader lives
  in a LangChain partner repo instead of the `langchain-community` repo and you will need an
  `api_key`. You can [generate a free key on the Unstructured API key page](https://unstructured.io/api-key/).
  * Unstructured's documentation for the sdk can be found here:
    [https://docs.unstructured.io/api-reference/api-services/sdk](https://docs.unstructured.io/api-reference/api-services/sdk)

* To run everything locally, install the open-source python package with `pip install unstructured`
  along with `pip install langchain-community` and use the same `UnstructuredLoader` as mentioned above.
  * You can install document specific dependencies with extras, e.g. `pip install "unstructured[docx]"`. Learn more about extras in the [full installation documentation](https://docs.unstructured.io/open-source/installation/full-installation).
  * To install the dependencies for all document types, use `pip install "unstructured[all-docs]"`.

* Install the following system dependencies if they are not already available on your system with e.g. `brew install` for Mac.
  Depending on what document types you're parsing, you may not need all of these.
  * `libmagic-dev` (filetype detection)
  * `poppler-utils` (images and PDFs)
  * `tesseract-ocr`(images and PDFs)
  * `qpdf` (PDFs)
  * `libreoffice` (MS Office docs)
  * `pandoc` (EPUBs)

* When running locally, Unstructured also recommends using Docker [by following this
  guide](https://docs.unstructured.io/open-source/installation/docker-installation) to ensure all
  system dependencies are installed correctly.

The Unstructured API requires API keys to make requests.
You can [request an API key](https://unstructured.io/api-key-hosted) and start using it today!
Check out the [Unstructured API README](https://github.com/Unstructured-IO/unstructured-api) to get started making API calls.
We'd love to hear your feedback, let us know how it goes in our [community slack](https://join.slack.com/t/unstructuredw-kbe4326/shared_invite/zt-1x7cgo0pg-PTptXWylzPQF9xZolzCnwQ).
And stay tuned for improvements to both quality and performance!
Check out the [Docker self-hosting instructions](https://github.com/Unstructured-IO/unstructured-api#dizzy-instructions-for-using-the-docker-image) if you'd like to self-host the Unstructured API or run it locally.

## Data loaders

The primary usage of `Unstructured` is in data loaders.

### UnstructuredLoader

See a [usage example](/oss/python/integrations/document_loaders/unstructured_file) to see how you can use
this loader for both partitioning locally and remotely with the serverless Unstructured API.

```python theme={null}
from langchain_unstructured import UnstructuredLoader
```

### UnstructuredCHMLoader

`CHM` means `Microsoft Compiled HTML Help`.

```python theme={null}
from langchain_community.document_loaders import UnstructuredCHMLoader
```

### UnstructuredCSVLoader

A `comma-separated values` (`CSV`) file is a delimited text file that uses
a comma to separate values. Each line of the file is a data record.
Each record consists of one or more fields, separated by commas.

See a [usage example](/oss/python/integrations/document_loaders/csv#unstructuredcsvloader).

```python theme={null}
from langchain_community.document_loaders import UnstructuredCSVLoader
```

### UnstructuredEmailLoader

See a [usage example](/oss/python/integrations/document_loaders/email).

```python theme={null}
from langchain_community.document_loaders import UnstructuredEmailLoader
```

### UnstructuredEPubLoader

[EPUB](https://en.wikipedia.org/wiki/EPUB) is an `e-book file format` that uses
the “.epub” file extension. The term is short for electronic publication and
is sometimes styled `ePub`. `EPUB` is supported by many e-readers, and compatible
software is available for most smartphones, tablets, and computers.

See a [usage example](/oss/python/integrations/document_loaders/epub).

```python theme={null}
from langchain_community.document_loaders import UnstructuredEPubLoader
```

### UnstructuredExcelLoader

See a [usage example](/oss/python/integrations/document_loaders/microsoft_excel).

```python theme={null}
from langchain_community.document_loaders import UnstructuredExcelLoader
```

### UnstructuredFileIOLoader

See a [usage example](/oss/python/integrations/document_loaders/google_drive#passing-in-optional-file-loaders).

```python theme={null}
from langchain_community.document_loaders import UnstructuredFileIOLoader
```

### UnstructuredHTMLLoader

```python theme={null}
from langchain_community.document_loaders import UnstructuredHTMLLoader
```

### UnstructuredImageLoader

See a [usage example](/oss/python/integrations/document_loaders/image).

```python theme={null}
from langchain_community.document_loaders import UnstructuredImageLoader
```

### UnstructuredMarkdownLoader

See a [usage example](/oss/python/integrations/vectorstores/starrocks).

```python theme={null}
from langchain_community.document_loaders import UnstructuredMarkdownLoader
```

### UnstructuredODTLoader

The `Open Document Format for Office Applications (ODF)`, also known as `OpenDocument`,
is an open file format for word processing documents, spreadsheets, presentations
and graphics and using ZIP-compressed XML files. It was developed with the aim of
providing an open, XML-based file format specification for office applications.

See a [usage example](/oss/python/integrations/document_loaders/odt).

```python theme={null}
from langchain_community.document_loaders import UnstructuredODTLoader
```

### UnstructuredOrgModeLoader

An [Org Mode](https://en.wikipedia.org/wiki/Org-mode) document is a document editing, formatting, and organizing mode, designed for notes, planning, and authoring within the free software text editor Emacs.

See a [usage example](/oss/python/integrations/document_loaders/org_mode).

```python theme={null}
from langchain_community.document_loaders import UnstructuredOrgModeLoader
```

### UnstructuredPDFLoader

```python theme={null}
from langchain_community.document_loaders import UnstructuredPDFLoader
```

### UnstructuredPowerPointLoader

See a [usage example](/oss/python/integrations/document_loaders/microsoft_powerpoint).

```python theme={null}
from langchain_community.document_loaders import UnstructuredPowerPointLoader
```

### UnstructuredRSTLoader

A `reStructured Text` (`RST`) file is a file format for textual data
used primarily in the Python programming language community for technical documentation.

See a [usage example](/oss/python/integrations/document_loaders/rst).

```python theme={null}
from langchain_community.document_loaders import UnstructuredRSTLoader
```

### UnstructuredRTFLoader

See a usage example in the API documentation.

```python theme={null}
from langchain_community.document_loaders import UnstructuredRTFLoader
```

### UnstructuredTSVLoader

A `tab-separated values` (`TSV`) file is a simple, text-based file format for storing tabular data.
Records are separated by newlines, and values within a record are separated by tab characters.

See a [usage example](/oss/python/integrations/document_loaders/tsv).

```python theme={null}
from langchain_community.document_loaders import UnstructuredTSVLoader
```

### UnstructuredURLLoader

See a [usage example](/oss/python/integrations/document_loaders/url).

```python theme={null}
from langchain_community.document_loaders import UnstructuredURLLoader
```

### UnstructuredWordDocumentLoader

See a [usage example](/oss/python/integrations/document_loaders/microsoft_word#using-unstructured).

```python theme={null}
from langchain_community.document_loaders import UnstructuredWordDocumentLoader
```

### UnstructuredXMLLoader

See a [usage example](/oss/python/integrations/document_loaders/xml).

```python theme={null}
from langchain_community.document_loaders import UnstructuredXMLLoader
```

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