---
title: Attach materials to a chatbot
description: Uploaded files and web sources live in your library — this is the step that connects them to a particular assistant so it can answer from them.
sidebar:
  label: Attach materials
  icon: link
---

Uploading a file or adding a website puts it in your **library** — a shared collection tied to your account, not to any one assistant. Before an assistant can answer from a document, you have to **attach that material to the specific chatbot**. This is an easy step to miss, and it's why a freshly uploaded file sometimes seems "invisible" to an assistant.

The upside of this design: one file or website can feed **several assistants** at once. Upload your syllabus once, attach it to every course chatbot that needs it.

## Attach from the chatbot

The most direct way is from the assistant itself.

1. **Open your assistant**

    From your [dashboard](https://teachanything.ai/dashboard), open the chatbot
    you want to work on.

2. **Go to the Files or Web Sources tab**

    Each assistant has a **Files** tab and a **Web Sources** tab. The Files tab
    shows its **Associated Files**; the Web Sources tab shows the sites in its
    knowledge base.

3. **Add files from your library**

    On the **Files** tab, use **Quick add files from your library** to pick
    documents you've already uploaded. Click **Add** on a row (or select several
    and use **Add Selected**) to associate them with this chatbot.

4. **Attach web sources**

    On the **Web Sources** tab, use **Attach an existing web source** and click
    **Attach** on the site you want. Its crawled pages come along automatically,
    so the assistant can use them right away.

:::note[Uploading here works too]
You can also upload a brand-new file or crawl a new site directly from these
tabs. When you do, it's added to your library _and_ attached to this chatbot in
one step.
:::

## Attach from the library

If you'd rather work from the library side, the **Web Sources** page in your
dashboard lists every source in a table. Each row has an **Attach** button that
opens a checklist of your chatbots — tick the ones that should use that source,
untick to remove it. It's the quickest way to spread one website across multiple
assistants at once.

## Removing a material

Attachments are always reversible. Remove a file from a chatbot's **Associated
Files**, or use **Remove Selected** on the Web Sources tab, and the assistant
stops using it immediately. The material stays in your library for other
assistants — removing it here doesn't delete it.

**[Next: Customize your assistant](/instructors/customize)**

Fine-tune how it sounds, which LLM it uses, and how it looks.