DataSheetAI
Open workspace

Spreadsheets, context, agents

A Cursor-style surface for Excel work—formulas, formatting, and AI that respects your grid.

Model rows on a fast canvas, wire formulas with proper references, import real workbooks, and route the assistant with sheet context blocks—not a disconnected chat dump.

Launch editor

Local-first workbook · Bring your own key · Modern UI

The workspace

Formula bar, ribbon-style controls, multi-sheet tabs, and a dedicated assistant that writes JSON cell patches you can see applied instantly.

Grid

Product
Qty
Price
Total
Alpha
12
19.5
=B2*C2

Assistant

“Add a VAT column using 9% on totals, leave source data untouched.”

{ "cells":[{"r":1,"c":4,"raw":"=D2*1.09"}]}

Built-in agents

Slash commands route the model with tight instructions for spreadsheet-shaped outputs—structured JSON cells, not essays.

  • Clean & format

    Normalize headers, trim noise, and suggest consistent number formats across large paste-ins—without inventing data you did not provide.

  • Formula assistant

    Translate totals, lookups, and checks into working Excel-style formulas the grid understands, with ranges and cross-sheet refs when helpful.

  • Summarize blocks

    Place compact subtotals, frequency tables, or KPI strips in empty space so the original table stays intact.

  • Data quality

    Find blanks, duplicates, and inconsistent labels; propose safe fixes or helper columns instead of silent guesswork.

Spreadsheet toolkit

  • Familiar grid: rows, columns, merge, freeze top row, sort & filter, clipboard
  • Formula bar with SUM, AVERAGE, IF, ranges, sheet refs, dates, text helpers
  • Formatting: bold, italic, underline, align, number formats, colors
  • Import/export: Excel (.xlsx) and CSV; workbook stays in localStorage
  • Assistant sees TSV previews, pasted reference blocks, and optional multi-sheet context
  • Slash-tools: /clean-sheet, /formulas, /pivot, /dq—your API key stays in the browser

Try the workspace

Open DataSheetAI