> For the complete documentation index, see [llms.txt](https://docs.n8n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-langchain.openai/file-operations.md).

# File operations

Use this operation to create, delete, list, message, or update a file in OpenAI. Refer to [OpenAI](/integrations/builtin/app-nodes/n8n-nodes-langchain.openai.md) for more information on the OpenAI node itself.

## Delete a File <a href="#delete-a-file" id="delete-a-file"></a>

Use this operation to delete a file from the server.

Enter these parameters:

* **Credential to connect with**: Create or select an existing [OpenAI credential](/integrations/builtin/credentials/openai.md).
* **Resource**: Select **File**.
* **Operation**: Select **Delete a File**.
* **File**: Enter the ID of the file to use for this operation or select the file name from the dropdown.

Refer to [Delete file | OpenAI](https://platform.openai.com/docs/api-reference/files/delete) documentation for more information.

## List Files <a href="#list-files" id="list-files"></a>

Use this operation to list files that belong to the user's organization.

Enter these parameters:

* **Credential to connect with**: Create or select an existing [OpenAI credential](/integrations/builtin/credentials/openai.md).
* **Resource**: Select **File**.
* **Operation**: Select **List Files**.

### Options <a href="#options" id="options"></a>

* **Purpose**: Use this to only return files with the given purpose. Use **Assistants** to return only files related to Assistants and Message operations. Use **Fine-Tune** for files related to [Fine-tuning](https://platform.openai.com/docs/api-reference/fine-tuning).

Refer to [List files | OpenAI](https://platform.openai.com/docs/api-reference/files/list) documentation for more information.

## Upload a File <a href="#upload-a-file" id="upload-a-file"></a>

Use this operation to upload a file. This can be used across various operations.

Enter these parameters:

* **Credential to connect with**: Create or select an existing [OpenAI credential](/integrations/builtin/credentials/openai.md).
* **Resource**: Select **File**.
* **Operation**: Select **Upload a File**.
* **Input Data Field Name**: Defaults to `data`. Enter the name of the binary property which contains the file. The size of individual files can be a maximum of 512 MB or 2 million tokens for Assistants.

### Options <a href="#options" id="options"></a>

* **Purpose**: Enter the intended purpose of the uploaded file. Use **Assistants** for files associated with Assistants and Message operations. Use **Fine-Tune** for [Fine-tuning](https://platform.openai.com/docs/api-reference/fine-tuning).

Refer to [Upload file | OpenAI](https://platform.openai.com/docs/api-reference/files/create) documentation for more information.

## Common issues <a href="#common-issues" id="common-issues"></a>

For common errors or issues and suggested resolution steps, refer to [Common Issues](/integrations/builtin/app-nodes/n8n-nodes-langchain.openai/common-issues.md).