Edit Excel-like sheets in the browser: cells, formulas, charts, freeze panes and CSV/XLSX import-export.
Edits auto-save to this browser. Import/export uses SheetJS — formulas on import are kept as computed values.
Click any cell to edit. Import an XLSX/CSV via the button above; export back to XLSX or CSV. Use the built-in toolbar for formulas, formatting, charts, freeze panes. Data stays in your browser.