Privacy Policy

Last updated: August 27, 2026

Overview

At ExcelTool.io, we take your privacy seriously. This Privacy Policy explains how we handle your data when you use our website and tools.

Data Processing

Most ExcelTool features process files entirely in your browser. Those local tools use client-side JavaScript and do not send workbook content to us or an AI provider. For those tools:

• We do not upload your files to any server
• We do not store your data
• We cannot access the contents of your files
• Your sensitive information remains completely private

When you use our tools to view, convert, or manipulate Excel files, all processing is performed locally in your web browser and the files never leave your computer. The clearly labelled AI features described below are exceptions.

AI extraction on Image to Excel

The Image to Excel tool offers an optional AI extraction mode. When you choose it (the choice is shown before you upload), the image you provide is sent to our server on Vercel and forwarded through Vercel AI Gateway to an AI model, solely to read the table out of the image. Specifically:

• What is transmitted: the image you selected (re-encoded and downscaled in your browser first), and nothing else.
• Why: to produce the extracted table you asked for. It is not used for anything else by us.
• Our server does not save the image or the extracted table, and ExcelTool's application logs and error telemetry do not include the image or extracted cell content. Standard request metadata such as time, IP address, status, model, token count, and latency may still be logged.
• The image passes through the AI model provider's infrastructure to produce the result. We do not make claims about the provider's retention or training practices that we cannot verify; if the image is sensitive, use the tool's Private mode, which runs entirely in your browser.

Chat with Excel

The Chat with Excel tool opens and previews the original workbook locally, but its AI conversation is not local-only. The page displays a warning before file selection and requires you to tick a consent box before it sends workbook content. When you ask a question:

• The original .xlsx, .xls, .xlsm, or .xlsb file is not uploaded. ExcelTool builds a bounded plain-data snapshot in your browser.
• The snapshot can contain cell values, formatted display text, formulas, sheet names, cell references, and the question and recent chat messages you submit. It is sent through Vercel AI Gateway to OpenAI GPT-5.6 Luna.
• Ordinary workbooks include every non-empty cell. Large workbooks are capped and sampled across sheets; the page shows the included and total cell counts before you consent.
• ExcelTool does not save the snapshot, question, or answer, and its application logs and error telemetry do not include workbook or chat content. Standard request metadata such as time, IP address, status, model, token count, and latency may still be logged by the infrastructure involved.
• If you are not permitted to share the workbook with OpenAI, do not tick the consent box. Use the local Excel Viewer, Editor, or analysis tools instead.

Information We Collect

Analytics Data

We may collect anonymous analytics data to understand how our website is used. This includes:

• Pages visited
• Time spent on pages
• Browser type and version
• Device type (desktop, mobile, tablet)
• Geographic region (country level only)

This data is anonymized and cannot be used to identify individual users. We use this information to improve our tools and user experience.

Cookies

We may use essential cookies to:

• Remember your preferences (like dark mode settings)
• Provide basic site functionality

We do not use tracking cookies or third-party advertising cookies.

Third-Party Services

We may use the following third-party services:

• Hosting: Our website is hosted on Vercel, which may collect standard server logs (IP addresses, request times, etc.) as part of their service.
• Analytics: We may use privacy-focused analytics to understand site usage patterns.
• AI infrastructure: Clearly labelled AI features use Vercel AI Gateway and an AI model provider to process the content you choose to send.

Data Security

We do not intentionally persist files or AI request content in the ExcelTool application. Clearly labelled AI features still transmit selected content through third-party infrastructure, so do not use them for data you are not authorized to share. Our website is served over HTTPS to protect connections in transit.

Children's Privacy

ExcelTool.io is not directed at children under the age of 13. We do not knowingly collect personal information from children.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify users of any significant changes by posting a notice on our website.

Your Rights

ExcelTool does not require an account or maintain an application database of your workbook contents. You can clear locally stored preferences by clearing your browser's cookies and local storage. Third-party infrastructure may process standard request metadata as described above.

Contact Us

If you have any questions about this Privacy Policy, please contact us through our website.