LocalBridge

Spreadsheets to ChatGPT

How to send spreadsheets to ChatGPT

The hard part of asking ChatGPT about spreadsheets is not the question. It is getting the pages in front of it. This walks through what ChatGPT actually receives, what it will not get, and how to phrase the question so the extra context earns its place.

What gets captured

From spreadsheets, LocalBridge takes the visible cell text of the sheet you have open. Page furniture such as navigation, sidebars and cookie notices is dropped before anything is sent, which keeps the batch small enough for ChatGPT to reason over rather than skim.

ChatGPT works best when the pages arrive as one clearly numbered block followed by your question.

Step by step

  1. Step 1

    Open the pages you care about

    Put the spreadsheets you want answered in one browser window. Leave out everything unrelated: irrelevant pages cost context and pull the answer off topic.

  2. Step 2

    Tick the tabs to send

    Open LocalBridge and tick each tab. It reads the visible cell text of the sheet you have open, and drops navigation, sidebars and cookie banners.

  3. Step 3

    Send to ChatGPT

    Click the ChatGPT button. The pages arrive as a numbered list, each with its title and URL, so you can refer to source two by name.

  4. Step 4

    Ask the question that needed all of them

    Follow the context with something only the full set can answer. For example: "Describe the trend in this data and flag anything that looks wrong."

Where it falls short

Only the rendered viewport is captured, so scroll to the range that matters first.

Published 2026-09-15. If OpenAI changes how ChatGPT handles pasted context, this guide is updated rather than left to drift.

Common questions

Does ChatGPT read the whole of each page?
It reads what LocalBridge captured: the visible cell text of the sheet you have open. Each page is capped so one long document cannot crowd out the rest of the batch, and chatgpt works best when the pages arrive as one clearly numbered block followed by your question.
What does not come through from spreadsheets?
Only the rendered viewport is captured, so scroll to the range that matters first.
Do I need to be signed in for spreadsheets behind a login?
Yes. LocalBridge reads the page exactly as your browser already renders it, so if the tab shows the content, it is captured. It never logs in for you and never stores credentials.
How many spreadsheets can I send at once?
Up to eight tabs per send, trimmed so the batch stays inside a comfortable context budget. For bigger sets, send them in themed batches and ask one question per batch.
Is the page content stored anywhere?
No. The text goes from your browser to the assistant you chose. LocalBridge does not keep a copy and does not send page content to our servers.

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