What is a File Upload?
Giving the AI something to look at
"Uploading a file" means attaching a document, image, or spreadsheet from your device to your chat message, so the AI can read or look at it before responding — the same way you'd attach a photo to a WhatsApp message.
How to do it
Look for a small paperclip icon (📎) or a "+" button near the text box. Click it, choose a file from your device, and it attaches to your next message. You can then type instructions like "Summarize this PDF" or "What's wrong with this photo?"
What you can and can't upload
Most chat tools accept PDFs, Word documents, spreadsheets, and common image formats (JPG, PNG). Some have file size limits (often 10-50 MB). Never upload documents with passwords, private financial data, or anything you wouldn't want stored on someone else's server — see the privacy lesson later in this platform's ChatGPT for Business path for more on this.
Key Takeaways
- Uploading a file means attaching a document or image to your chat message.
- Look for a paperclip or '+' icon near the text box to attach a file.
- You can then instruct the AI to summarize, analyze, or answer questions about the file.
- Never upload sensitive personal, financial, or password-protected files to a chat tool.
Upload something safe
Upload a public, non-sensitive image (like a photo of your desk or a menu) to ChatGPT or Claude and ask 'What do you see in this image?'