# File Preview

The **File Preview** panel - visible on the right side of the Build screen - is where you can view all documents uploaded to Metaforms, most commonly the **questionnaire**.

**Key Features:**

* **Import Files**: Upload new documents or updated versions of an existing questionnaire using the **Import** button. Click on "Upload new File(s)" to add new files or "Upload New Version of ..files.."
* **View All Files**: Click **View all files** to browse every document associated with the project.
* **Open in Split**: Displays the document side-by-side with your XML editor in split view for easier reference while building.
* **Open in New Window**: Opens the document in a separate tab or window for full-screen access.
* **Download File**: Lets you download the document locally.
* **View History**: Shows a **timestamped history** of document uploads and updates, so you can track changes over time or revert if needed.

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# Agent Instructions: 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:

```
GET https://help.metaforms.ai/data-processing/build-page-walkthrough/file-preview.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.