100 Incredible Things You Can Do with AI
  • Home
  • Purchase Book — $16.95
  • Quantity Discount
  • Incredible Prompts from Book
  • Press and Media Inquiries
  • Ken as a Guest Speaker
  • Contact Ken
  • Cartoons

How to Upload A File to Gemini or ChatGPT

Picture

Many people do not realize that AI tools like ChatGPT and Gemini can read files. This means you can upload a document, PDF, spreadsheet, image, or other file and ask the AI to summarize it, explain it, organize it, rewrite it, find key points, or answer questions about it.

How to Upload a File to ChatGPT
  1. Go to ChatGPT.
Open ChatGPT on your computer, phone, or tablet.
  1. Start a new chat.
Click or tap in the message box, the same place where you normally type your question.
  1. Look for the attachment button.
Near the message box, look for a plus sign, paperclip, or attachment button.
  1. Choose your file.
Click the attachment button and select the file from your computer, phone, or tablet.
  1. Add your instruction.
After the file is attached, type what you want ChatGPT to do with it.

Examples:
“Summarize this document in plain English.”
“Find the most important points in this file.”
“Turn this into a shorter, clearer version.”
“Create a list of action items from this document.”
“Explain this like I am a beginner.”
  1. Send the message.
ChatGPT will read the file and respond based on what you asked.
Picture
How to Upload a File to Gemini
​
  1. Go to Gemini.
Open Gemini on your computer, phone, or tablet.
  1. Start a new prompt.
Click or tap in the message box.
  1. Look for the Add Files button.
Near the message box, look for an Add Files button, plus sign, or attachment icon.
  1. Choose where the file is located.
You may be able to upload a file from your device or choose a file from Google Drive.
  1. Select the file.
Choose the document, PDF, image, spreadsheet, or other supported file you want Gemini to review.
  1. Type your instruction.
Tell Gemini exactly what you want it to do.
Examples:
“Summarize this file.”
“Pull out the main ideas.”
“Explain this in simple language.”
“Create a checklist from this document.”
“Compare the information in these files.”
  1. Submit your prompt.
Gemini will analyze the file and respond.

Extra Information (not necessary to read)
Helpful Tips

Use clear instructions. Do not just upload a file and say, “What do you think?” Instead, tell the AI exactly what you want.
Good examples:
“Summarize this in 10 bullet points.”
“Find anything confusing or poorly written.”
“Turn this into an email.”
“Create a one-page study guide.”
“Explain the most important parts.”
Be careful with private information. Before uploading a file, make sure you are comfortable sharing its contents with the AI tool you are using. Avoid uploading sensitive financial, medical, legal, or confidential business information unless you understand the privacy rules for your account.
If the upload button is missing, try these fixes:
Make sure you are signed in.
Try using a computer instead of a phone.
Refresh the page.
Update the app.
Try a different browser.
Check whether your account plan supports file uploads.
If you are using a work or school account, your organization may need to turn on file access.
Best Beginner Prompt
After uploading a file, use this simple prompt:
“Please review this file and explain it in clear, simple language. Then give me the 10 most important takeaways and any action items I should know about.”
Purchase “100 Incredible Things” Book
Even More Incredible AI Tips
Copyright © 2026 Ken Leebow
  • Home
  • Purchase Book — $16.95
  • Quantity Discount
  • Incredible Prompts from Book
  • Press and Media Inquiries
  • Ken as a Guest Speaker
  • Contact Ken
  • Cartoons