M4–M10: PivotTables, PDF export & printing, what-if analysis, spelling, more commands
- PivotTables: engine (grouping, date groups, multiple values, show-as, filters, layouts,
refresh, recommended pivots) + PivotTable Fields task pane
- sheetcraft-pdf (dependency-free PDF writer, core-14 fonts) + file.exportPdf/print/
printPreview/pageLayout.pageSetup with pagination, headers/footers, charts, images
- What-if: Goal Seek, Scenario Manager, data tables, advanced filter, consolidate
- Page Break Preview rendering; view mode buttons
- Spelling (system dictionary), icons library, cell checkboxes, recorded scripts,
chart design/format commands, arrange, custom views, watch window, Get Data from CSV/JSON
- Native macOS menu bar
- UI interaction tests (kittest): fixed arrow keys losing grid focus and Escape not cancelling
- Perf: FxHash in calc, sparse range reads, Arc'd formula ASTs, fast auto row heights
- Parity 254/290 (87.6%)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>