> ## Documentation Index
> Fetch the complete documentation index at: https://support.calderapbc.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Tagging files

> Pull saved documents into any conversation with the @ file picker.

Tagging pulls files you've already saved to Mesa directly into a conversation. Unlike one-off [attachments](/attachments), tagged files live in your Mesa library, so you can reuse the same documents across as many conversations as you like without re-uploading them.

## Tag a file in a conversation

<Steps>
  <Step title="Open the chat box">
    Go to the Home page or New Conversation page.
  </Step>

  <Step title="Open the file picker">
    Click the `@` symbol at the bottom-left of the chat box, or type `@` directly and select **Select from my files**.

    <Frame>
      <img src="https://mintcdn.com/calderapbc/7IoAzzCFGlCom9iV/images/Screenshot-2026-06-27-at-8.43.24-AM.png?fit=max&auto=format&n=7IoAzzCFGlCom9iV&q=85&s=eef3c431e9ef62cd9115b1c2ccd08c86" alt="" width="2494" height="1770" data-path="images/Screenshot-2026-06-27-at-8.43.24-AM.png" />
    </Frame>
  </Step>

  <Step title="Choose your file">
    Select the file you want Mesa to reference.
  </Step>

  <Step title="Finish your prompt">
    Continue typing and send your message. Mesa uses the tagged file in its response.
  </Step>
</Steps>

<Tip>
  Working with a document you won't need again? Use an [attachment](/attachments) instead. To organize the files you can tag, see [Files](/files).
</Tip>

## Related articles

<Card title="Files" href="/files" horizontal>
  Manage the saved documents that you can tag in conversations.
</Card>

<Card title="Attachments" href="/attachments" horizontal>
  Upload temporary documents for a single conversation.
</Card>

<Card title="Exhaustive search" href="/exhaustive-search" horizontal>
  Tag files to define the corpus for a comprehensive search.
</Card>