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

# Import files

> Add PDFs, office documents, images, Markdown, code, and text to a workspace.

Use file import when you want source material to become part of a workspace.

## Add Files

<Steps>
  <Step title="Open a workspace">
    Go to the workspace where the source material belongs.
  </Step>

  <Step title="Drop or choose files">
    Drag files into the workspace or use the workspace upload controls.
  </Step>

  <Step title="Review accepted files">
    The upload intake accepts supported files and rejects unsupported files with a specific message.
  </Step>

  <Step title="Wait for processing">
    Larger PDFs, office files, and images may need conversion, preview generation, or text extraction before every AI feature is available.
  </Step>
</Steps>

## Supported Formats

| Kind            | Formats                              | Result                                             |
| --------------- | ------------------------------------ | -------------------------------------------------- |
| PDF             | `.pdf`                               | File item with PDF viewer, preview, and extraction |
| Word            | `.docx`                              | Converted to PDF file item                         |
| PowerPoint      | `.pptx`                              | Converted to PDF file item                         |
| Image           | `.png`, `.jpg`, `.jpeg`, `.webp`     | Image file item                                    |
| iPhone image    | `.heic`, `.heif`                     | Converted to JPEG image item                       |
| Text-like files | CSV, TSV, Markdown, code, plain text | Document item                                      |

## Limits

| Limit               | Value  |
| ------------------- | ------ |
| Files per selection | 50     |
| Bytes per selection | 200 MB |
| Upload concurrency  | 5      |

<Tip>
  For AI-heavy work, upload only the sources you need for the current workspace. Smaller, well-named workspaces are easier to navigate and easier to ask about.
</Tip>