Excel Whisper
Excel Whisper is a browser-based AI assistant for Excel and CSV files. You describe a task in plain language and it cleans, analyses and charts your data locally in your browser — only column headers are sent.
What is Excel Whisper?
Excel Whisper is a browser-based AI assistant for spreadsheets. You drop an .xlsx or .csv file onto the home page, describe in plain language what you want done, and the tool cleans, analyses and charts the data. Its central claim is architectural rather than contractual: all processing happens locally in your browser and only column headers are transmitted, so the model can read the structure of your table without seeing its contents. The publisher frames this as making access to your data technically impossible rather than merely promised.
Four example prompts sit under the drop zone and set expectations: match customers between two tables, plot an age distribution histogram, add a margin column computed as (selling price - cost) / selling price, and build a pivot table of monthly sales by region. Six capabilities are advertised — natural language processing, smart data cleaning, quick visualisation, local processing, multi-file support, and export and sharing — split across two modes. Basic covers common operations and charts; Pro adds complex Excel operations, advanced visualisations and larger datasets.
Every tier carries hard technical ceilings, published plan by plan: 2, 5 or 10 files; 10 MB, 100 MB, or a size limited only by your own machine; and 10, 20 or 50 fields per file. The free tier works without an account, the site stating that no login and no credit card are required.
Alongside the tool, an Excel features section offers 24 free function guides — VLOOKUP, XLOOKUP, HLOOKUP, SUMIFS, COUNTIF, MAXIFS, pivot tables, charts, transposition, duplicate removal and more — each with a Try Online section that runs in the browser. The interface ships in English and Chinese, and the FAQ says questions can be asked in your preferred language.
The positioning is deliberately modest: the publisher writes that it does not claim the AI understands your business context, and that industry expertise remains irreplaceable. Practical limits follow from that scope — no API, no mobile or desktop application, web only. The site is built on the ShipAny template, credited in the footer, and the domain was registered on 6 March 2025.
What it does
- Ask a question about your data in plain language, with no formula to write
- Clean a table: missing values, duplicates, formatting problems
- Generate the chart that matches the type of data supplied
- Cross-reference several Excel or CSV files within a single analysis
- Export the processed data and the generated charts
- Run all of the above without uploading the file anywhere
When to use Excel Whisper / When not to
A quick filter to help you decide if Excel Whisper is the right fit.
When to use Excel Whisper
- Excel users who know what result they want but not the formula that produces it
- Teams whose company data cannot be uploaded to a cloud chatbot, for policy or confidentiality reasons
- Anyone facing repetitive spreadsheet chores: cleaning, deduplication, transposition, pivot tables, charts
- People who need to compare or reconcile several spreadsheets at once, up to 10 files on the top tier
- Occasional users who want a handful of free analyses per month without creating an account
When not to use Excel Whisper
- Anyone expecting business interpretation: the publisher states plainly that it does not claim the AI understands your business context or delivers deep insight
- Large or wide datasets: every tier caps the number of fields read per file at 10 (Free), 20 (Standard) or 50 (Pro)
- Developers and automation projects: there is no API, no mobile or desktop application and no integration with an information system
- Procurement-led purchases: no data processing agreement, no subprocessor list, no GDPR statement, no published legal entity or postal address
- High-volume or heavy workloads: Free is limited to 2 files and 10 MB combined, and Pro performance depends on the user's own machine
How to use Excel Whisper
A typical end-to-end flow, from setup to results.
- Open the Excel Whisper site in any browser — there is nothing to install, no plugin and no add-in
- Drop up to two Excel or CSV files, 10 MB combined, into the drop zone on the home page, without creating an account
- Describe the task in plain language, using the four example prompts displayed under the drop zone as a model
- Let the analysis run in your browser: only the column headers are sent, the file itself stays on your device
- Review the result, then retrieve the processed data and the charts through the export function
- Create an account via the Sign In button to move to a paid tier, which raises the monthly quota and the file, size and field limits
- Subscribe to Pro to switch on Pro mode and unlock complex Excel operations and advanced visualisations
- Change tier or cancel by emailing contact@mail.excelwhisper.com with the account email and the change requested; the publisher announces processing within 12 hours
Pros & Cons
Pros
- Local processing: the file never leaves the workstation, which is a technical guarantee rather than a contractual promise
- The free plan is usable immediately, with no account and no credit card
- Pricing is public and low: USD 9.90 and USD 19.90 per month
- Quotas and technical ceilings are written down explicitly, tier by tier
- The publisher states openly what the AI cannot do, rather than overselling business insight
- 24 free Excel function guides, runnable in the browser and useful even without subscribing
- Interface available in English and Chinese
Cons
- The advertised monthly quotas contradict each other: 300 and 1,000 analyses on the pricing grid, against 200 and 500 in the home page FAQ and the terms of service
- No registered company name, no postal address and no corporate or team page are published anywhere on the site
- No GDPR mention, no data processing agreement, no subprocessor list and no minimum age requirement
- Privacy policy and terms are dated 8 February 2024, thirteen months before the domain was registered: template documents left un-updated
- The seven testimonials name prestigious employers such as Goldman Sachs, Deloitte, Microsoft, Stanford and PwC, with no link or means of verification
- No API, no mobile application and no integration beyond Stripe for payment; support runs through a single email address and a Discord server
- The field ceilings of 10, 20 and 50 columns per file are low for real-world datasets, and no refund is offered for usage already consumed
Pricing & Plans
Excel Whisper operates on a freemium model. A permanent free plan is available at no cost, covering 10 analyses per month in Basic mode with up to 2 files, 10 MB combined and 10 fields per file, and requiring neither an account nor a credit card. The lowest paid entry point is the Standard plan at USD 9.90 per month, displayed as a reduction from USD 20; the Pro plan is USD 19.90 per month, displayed as a reduction from USD 30. Billing is monthly and payments are processed by Stripe. A subscription may be cancelled at any time, taking effect at the end of the current period, with no refund for usage already consumed. No annual, enterprise or quote-based pricing is published.
- Free — USD 0 — 10 analyses per month
- Basic mode
- up to 2 files
- 10 MB combined
- 10 fields per file
- basic charts and operations
- no login and no credit card required
- Standard — USD 9.90 per month
- shown reduced from USD 20 and flagged Popular — 300 analyses per month according to the pricing grid
- Basic mode
- up to 5 files
- 100 MB
- 20 fields per file
- faster response time
- Pro — USD 19.90 per month
- shown reduced from USD 30 — 1
- 000 analyses per month according to the pricing grid
- Pro mode
- up to 10 files
- unlimited file size bounded only by the user's machine
- 50 fields per file
- advanced charts
- the home page FAQ and the terms of service state 200 analyses per month for Standard and 500 for Pro
- against 300 and 1
- 000 on the pricing grid. The site does not reconcile the two sets of figures
- Billing is monthly through Stripe
- no annual
- enterprise or quote-based plan is published
Data, GDPR & hosting
A consolidated view of how Excel Whisper handles your data.
GDPR overview
Excel Whisper makes no GDPR claim whatsoever. The words GDPR and General Data Protection Regulation appear nowhere on the site — not on the home page, the privacy policy, the terms or the guides. No legal basis is cited, no data protection officer or Article 27 representative is named, no international transfer is documented. The privacy policy does list user rights without labelling them as such: access your account information, correct personal information, delete your account and associated data, export your usage history, opt out of non-essential communications. No procedure or response deadline is given, and email is the only channel. The policy is dated 8 February 2024, thirteen months before the domain was registered, which points to an unmodified site template rather than a document written for this service. No DPA and no subprocessor list are published; only Stripe is named.
Who owns the data?
The terms of service state that users retain all rights to the data they upload, while the platform, its software and its features remain the publisher's property. Architecture narrows the question further: spreadsheet contents are processed in the browser and, according to the privacy policy, are never uploaded to the publisher's servers, so there is no file held server-side to claim. What the publisher does collect and keep is narrower but real: column headers, the types of analysis requested, performance metrics, usage statistics, browser information and error reports, plus an email address and subscription status for paying users. Nothing in the documents grants the publisher a licence over spreadsheet content.
Reuse rights
Because users keep all rights to the files they process, the outputs — cleaned tables, charts, exports — can be reused freely, commercially or otherwise, with no permission to request and no licence granted back to the publisher. On its own side, the publisher says it uses the data it collects only to deliver the service (processing requests, managing subscriptions, providing support), to improve it (enhancing its analysis capabilities, refining the user experience, fixing bugs) and to manage accounts. Payments are handled by Stripe. Announced safeguards include encrypted communications, strict access controls, regular security audits, security training and documented procedures. No sharing, resale or advertising use is mentioned. Model training is not addressed at all, in either direction.
Data retention & training
Hosting summary
No hosting country or region is named anywhere on the site. The architecture shifts most of the question: spreadsheets are processed in the user's own browser, so file contents stay on the user's device and never reach a server. What does travel to the publisher's infrastructure is narrower — column headers, the types of analysis requested, performance metrics, usage statistics and, for paying users, an email address and subscription status. Payments are handled by Stripe. Two technical signals were observed at collection time, outside anything the publisher declares: the domain sits behind Cloudflare on the anycast IP 172.67.166.254, and a response header, x-zeabur-ip-country: VN, points to hosting on Zeabur. These are infrastructure clues rather than confirmed statements, and the site names neither provider. No data processing agreement, no subprocessor list and no documentation of international transfers are published, so an organisation with jurisdiction requirements has nothing to rely on beyond the local-processing design itself.
Things to keep in mind
Risks and trade-offs to weigh before adopting Excel Whisper.
- Contradictory quotas: 300 and 1,000 analyses per month on the pricing grid against 200 and 500 in the home page FAQ and the terms of service. Confirm your actual monthly allowance before subscribing
- Permanently discounted pricing, USD 20 struck to 9.90 and USD 30 struck to 19.90, with no end date and no promotional code. Treat these as the standard prices rather than a closing window
- Legal documents dated 8 February 2024, thirteen months before the domain was registered, so they may not describe this service; no GDPR mention and no data processing agreement
- No publisher identity: no registered company name, no postal address and no corporate page, which leaves a single email address as the only recourse in a dispute
- Testimonials attributed to staff at prestigious organisations, with no link, profile or evidence supporting them
- The claim that data never leaves your device still involves sending column headers to the server, and headers can themselves be sensitive
- Nothing is stated about model training, neither a commitment nor an opt-out; and the publisher itself warns that the AI does not understand your business context, so results still need checking by someone who knows the data
Setup & Integrations
Technical difficulty
Very low. There is nothing to install: no plugin, no add-in and no API key. You open the site in a browser, drop a file and write your request in plain language. The free plan requires neither an account nor a credit card, so a first analysis can be run within a minute of landing on the page. The only real constraint is hardware: because computation happens locally, the size of dataset you can handle on the Pro tier is bounded by your own machine rather than by a server.
Deployment
Integrations
Supported languages
Behind Excel Whisper
Fundraising
Resources
All the official URLs gathered for verification and reference.
Frequently asked questions
What is Excel Whisper and how does it work?
Is my spreadsheet data safe?
What is the difference between Basic and Pro modes?
Are there limits on file size or on the number of files?
How many analyses do I get per month?
Can I try it before paying?
What is the refund policy?
How do I change or cancel my plan?
Is there an API or a mobile application?
Who publishes Excel Whisper?
Should you pick Excel Whisper?
Excel Whisper makes a narrow, clearly stated promise and largely keeps to it: clean, analyse and chart a spreadsheet without the file ever leaving your machine. That local-processing design answers a real blocker: the rule, formal or informal, that forbids pasting company data into a cloud chatbot. It is a technical answer rather than a contractual one, which is why it carries more weight than a standard privacy paragraph. The free tier is unusually accessible — 10 analyses a month, no account, no card — so the tool can be judged on evidence before any commitment.
Against that sit several things a careful buyer should weigh. The publisher is anonymous: no registered company name, no postal address, no team page, and a single email address as the only human channel. The privacy policy and terms are dated 8 February 2024, thirteen months before the domain was registered, marking them as unmodified template documents rather than a description of this service; there is no GDPR mention, no DPA and no subprocessor list. The advertised monthly quotas contradict each other across two pages of the same site — 300 and 1,000 on the pricing grid, 200 and 500 in the FAQ and the terms — and the seven testimonials attach prestigious employer names to claims that cannot be checked.
The scope is honest about itself: the publisher writes that it does not claim the AI understands your business context, and the hard ceilings of 10, 20 or 50 fields per file confirm this is a tool for everyday spreadsheets rather than for data engineering. Read that way, Excel Whisper fits individual and small-team use, where the free plan and low monthly prices keep the risk proportionate. It fits far less well a purchase that must clear legal or procurement review.
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