# Attachments

![Fluent – Attachments](/help-assets/fluent-attachments.webp)

Attachments let you include files directly in your Fluent conversations.

Use them when you want the AI to analyze documents, review spreadsheets, process images, or work with any other file content without copying and pasting the text manually.

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## What It Is

Fluent supports a wide range of file formats for attachments:

**Plain Text Formats:**
- `.txt` Plain text files
- `.md` Markdown documents
- `.json` JSON data files
- `.xml` XML files
- `.csv` CSV data files
- `.log` Log files
- `.yaml` / `.yml` YAML files
- `.toml` TOML files
- `.html` HTML files
- `.css` CSS files
- `.js` JavaScript files
- And other common code and text formats

**Documents:**
- `.doc` / `.docx` Microsoft Word documents
- `.pdf` PDF files

**Spreadsheets:**
- `.xls` / `.xlsx` Microsoft Excel spreadsheets

**Images:**
- `.jpg` / `.jpeg` JPEG images
- `.png` PNG images
- `.gif` GIF images
- `.webp` WebP images
- `.bmp` Bitmap images
- `.tiff` TIFF images
- And other common image formats

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## Use Attachments

Add attachments from the Smart Panel by:
- Clicking the attachment button
- Dragging and dropping files directly into the panel
- Using keyboard shortcuts if available

Once attached, files appear in the conversation and the AI can reference their content.

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## When To Use

Good use cases for attachments:

**Documents:**
- Summarize long reports
- Extract key information
- Rewrite or format documents
- Compare multiple documents

**Spreadsheets:**
- Analyze data
- Generate insights
- Create summaries
- Transform data formats

**Images:**
- Describe image content
- Extract text from images
- Analyze visual information
- Compare images

**Code and Text:**
- Review code
- Find issues
- Refactor or improve structure
- Generate documentation

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## Privacy

Attachments are sent to the selected AI provider along with your prompt.

If you are using cloud models, the attachment content leaves your device. If you are using local models (MLX or Apple Intelligence), attachments stay on your Mac.

Choose the model type based on the sensitivity of the content you are attaching.