A native macOS spreadsheet with a real formula engine, XLSX import/export, 50+ built-in functions, multi-sheet tabs, inspector panel, and full dark mode support. 64 passing tests, 7,633 lines of Swift, 2.4 MB DMG.
SUM, AVERAGE, IF, VLOOKUP, COUNTIF, CONCATENATE, DATE functions, and more. Real formula parser with cell references and ranges.
Open and save Excel .xlsx files natively. CSV export also supported. Seamless compatibility with existing spreadsheet workflows.
Create, rename, and switch between multiple sheets. Tab bar at the bottom like traditional spreadsheets.
Side panel with Cell Info, Font & Text formatting, Colors, and Sheet Info sections. Full cell formatting controls.
Select a range and see Sum, Average, Count instantly in the status bar. Formula bar shows cell content and address.
Full command-pattern undo/redo. Complete dark mode support. 64 automated tests covering models, formulas, and XLSX handling.
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