Histogram, box & whisker, waterfall, funnel, treemap and sunburst charts
were written as clustered columns, and reading skipped such charts in
files made by Excel, which keeps them as cx:chartSpace (chartex) parts.
The writer now writes these kinds as chartEx parts, as Excel lays them
out: the data goes through hidden _xlchart.v1.N workbook names, each
part comes with chart style and colour parts, and the drawing frames it
in mc:AlternateContent with a text-box fallback. Fills are written out
(series in theme accents, waterfall decreases and treemap/sunburst boxes
in their own, a white chart area), so they don't depend on the style
part. The reader reads the parts back (resolving the _xlchart names,
which aren't kept as names) with data, title, axis titles, legend,
labels and colours, and follows mc:AlternateContent in drawings.
A combo chart whose series have no kind of their own (as insert.chart
makes them) was written as one column group, and a stock chart as
clustered columns, so both reopened as clustered columns. Combo series
are now written as drawn (the first as columns, the others as lines),
and stock charts as a stockChart group (as lines when they don't have
the 3 or 4 series a stock chart needs).
- ui-egui: title bar with QAT, full ribbon (Home/Insert/Draw/Page Layout/Formulas/Data/
Review/View/Automate + Table/Chart Design), formula bar with Name Box, virtualised grid
(frozen panes, overflow, borders, CF data bars/scales/icons, tables, sparklines, filter
buttons, charts/pictures/shapes), in-cell editor with point mode, reference colouring,
autocomplete and argument hints, sheet tabs, status bar, dialogs, control channel
- apps/sheetcraft: desktop app (control server, file dialogs, prefs, drag & drop)
- chart: toolkit-free chart layout/rendering for 25 chart kinds + sparklines + rasteriser
- mcp + sheetcraft-cli: MCP server (headless or bridged) and CLI (info/convert/eval/cat/run/mcp)
- xtask (ci/layers/assets/wasm/version/parity), release workflows, packaging, placeholder icon
- automatic row heights
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
nihilist-narwhal