SpreadsheetCook is a desktop application. Your workbooks stay on your disk, it opens without a login, and there is a real query engine under the grid — not a web spreadsheet pretending. When a sheet gets big enough to make other tools stall, you write a SQL query instead of a nest of formulas.

Why it's different: Excel makes you fight VLOOKUP chains for what a query does in one line. SpreadsheetCook keeps the ribbon you know but adds =SQL() over your own tables, an AI assistant, and live data functions like =PRICE and =OHLCV — with your workbooks staying on your disk and the AI running on RedKitten's own hardware, not a third-party cloud.

What it does

SpreadsheetCook grid with a SQL query returning results into cells

Run SQL over your own sheet

A DuckDB query engine lives under the grid. Type =SQL("SELECT ...") or use the Data panel to query your tables directly — joins, aggregates and window functions the big sheets need, without exporting to a database first.

AI chat panel answering a question about the data in the sheet

AI over your own data

Ask for a formula with =ASKLLM, generate code with =CODE, or open Sheet Chat to ask about the data you have open. It runs on RedKitten's own inference hardware, not a third-party cloud — your workbooks never touch a SaaS vendor.

SpreadsheetCook ribbon showing the Home tab

One toolbar, everything in reach

A ribbon laid out the way you already expect: Home, Insert, Formulas, Data, LLM and Templates — no hunting through nested menus for the thing you use every day.

XLSX and CSV that round-trip

Open and save real Excel workbooks and CSVs — not an import that quietly drops your formatting on the way back out. Save your own .workbench format to keep tables, queries and annotations together.

Pivots and charts, done

Build a pivot table straight onto a new sheet, and drop in bar, line, scatter or pie charts from a range — then export either as XLSX or PNG.

Live data in a cell

=PRICE(sym), =OHLCV(sym) and more pull live market data straight into cells. Import structure out of a document rather than retyping it. Start from a built-in template instead of an empty grid.

Built for real workbooks

Your files, localA desktop app. Workbooks live on your disk; nothing is uploaded to open one.

No account to use itInstall it and it works. No sign-in wall in front of the grid.

Opens without ceremonyCold start into a usable grid, not a splash screen and a sync check.

A columnar engine underneathDuckDB powers the query side, so the large, slow sheets that make other tools stall stay responsive.

Browser versionThe same grid running in a browser. The engine exists but is single-tenant today — one shared database for everyone — so it is not deployed and not multi-user, and will not ship until per-session isolation is done.

Accounts and saved workSigning in to save workbooks server-side. Not built; there is no user store yet.

Metered AI creditsUsage-based AI beyond what the desktop licence includes. No metering exists today.

Pricing

SpreadsheetCook is a paid desktop tool. Plans and prices are being finalised for the first cohort.

Desktop licenceThe Windows desktop app, sold per user. Price to be announced.

Team / multi-seatVolume licensing for a team. Terms to be announced.

Get SpreadsheetCook

Desktop app for Windows, current build 1.1.0. The first cohort is opening soon — join the early-access list and we'll send the download and setup details.

Download for WindowsA Windows installer (MSI / NSIS). Download opens with the first cohort.

Get set upHow you get and activate the app is being finalised. Details published at launch.

Request early access →

Sold as a desktop licence. Early-access pricing for the first cohort.

Early access

SpreadsheetCook is a paid desktop tool and the first cohort is opening soon. Leave your email for an invite and early-access pricing.