Edit any Excel workbook with plain English

Open an .xlsx, .xlsm or .csv and edit it in a familiar spreadsheet grid — or ask the assistant to build formulas, format reports, analyze data, and add charts. Your file stays in your browser; only the cells being discussed are sent to the AI model.

or drop a file anywhere on this page · .xlsx · .xlsm · .csv · .tsv

Tutorial: what the AI assistant can do →

AI spreadsheet copilot

Write formulas, total columns, build budget and invoice templates, sort, and analyze your data by describing what you want. Every edit applies live with one-click undo.

Real Excel files, zero format loss

Open .xlsx, .xlsm and .csv in the browser. Styles, merged cells, column widths, frozen panes, formulas and untouched sheets survive the round trip byte-for-byte.

Formulas & charts that work

115+ Excel functions recalculate live — SUMIFS, XLOOKUP, INDEX/MATCH and more. Charts are written as native Excel chart XML that opens in desktop Excel.

Assistant

Tell me what to do with your spreadsheet.

I can enter data, write formulas, format reports, sort, analyze, build whole templates, and add charts. I see your sheet and my edits apply instantly — undo works too.

See the tutorial for 30+ example prompts.