Spreadsheets

Read, render, and edit XLSX workbooks with a headless model or a Svelte grid.

Open a workbook

Open XLSX bytes with openSpreadsheetArtifact. Use the worksheet model directly, or render it with SpreadsheetGrid.

Edit and save

Write cell values and supported ordinary formulas, format ranges, and export the edited workbook. Formula calculation is bounded; unsupported workbook features remain incomplete.

Cell edits, formulas, formatting, and export

Spreadsheet support and limitations

Try a workbook

Open the spreadsheet playground

Next Open a workbook