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Merge pull request #1828 from dylanmtaylor/chore/drop-competitor-references

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docs: drop references to competing commercial software
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Dylan M. Taylor
2026-10-19 17:12:29 -04:00
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parent 49fe41afbf d4f256d6ee
commit 23829d8c67
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README.md
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@@ -10,11 +10,11 @@
<h1 align="center">GridCraft</h1>
<p align="center">
<b>Spreadsheets and data; an open-source, clean-room reimplementation of Microsoft Excel, rebuilt in pure Rust.</b>
<b>Spreadsheets and data; an open-source, high-performance modern spreadsheet application, built in pure Rust.</b>
</p>
<p align="center">
A fast, open-source, clean-room take on the Excel workflow. It runs natively on macOS,
A fast, open-source, clean-room take on modern spreadsheet workflows. It runs natively on macOS,
Windows, Linux and BSD, and in the browser via WebAssembly.<br>
<i>By the ArtCraft team.</i>
</p>
@@ -70,8 +70,8 @@
<td width="50%" valign="top"><img src="docs/images/grades-formulas.png" alt="A gradebook table with averages and letter grades computed with IFS, green highlights on A grades and data bars, with the Formulas ribbon tab open showing the function library" width="100%"><p align="center"><sub><b>Formulas.</b> 500+ functions, dynamic arrays, LET and LAMBDA, structured table references.</sub></p></td>
</tr>
<tr>
<td width="50%" valign="top"><img src="docs/images/dark-insert.png" alt="The sales dashboard in dark mode with the Insert ribbon tab open, showing PivotTable, Table, Pictures, Shapes, chart, sparkline, link, comment, text box and symbol buttons" width="100%"><p align="center"><sub><b>Dark mode</b> and the Insert tab: tables, charts, sparklines, pictures, shapes, links and comments.</sub></p></td>
<td width="50%" valign="top"><img src="docs/images/pivot.png" alt="A PivotTable summarising revenue by region and product with a Channel report filter, grand totals and currency formatting, with the PivotTable Fields pane open on the right showing ticked fields and the Filters, Columns, Rows and Values areas" width="100%"><p align="center"><sub><b>PivotTables.</b> Field list, filters, layouts, date grouping and show-values-as, saved to and read from XLSX.</sub></p></td>
<td width="50%" valign="top"><img src="docs/images/dark-insert.png" alt="The sales dashboard in dark mode with the Insert ribbon tab open, showing Pivot Table, Table, Pictures, Shapes, chart, sparkline, link, comment, text box and symbol buttons" width="100%"><p align="center"><sub><b>Dark mode</b> and the Insert tab: tables, charts, sparklines, pictures, shapes, links and comments.</sub></p></td>
<td width="50%" valign="top"><img src="docs/images/pivot.png" alt="A pivot table summarising revenue by region and product with a Channel report filter, grand totals and currency formatting, with the Pivot Table Fields pane open on the right showing ticked fields and the Filters, Columns, Rows and Values areas" width="100%"><p align="center"><sub><b>Pivot tables.</b> Field list, filters, layouts, date grouping and show-values-as, saved to and read from XLSX.</sub></p></td>
</tr>
<tr>
<td width="50%" valign="top"><img src="docs/images/format-chart.png" alt="The sales dashboard with the column chart selected: resize handles on the chart, its source data outlined in the table, the Chart Design tab open and the Format Chart Area pane on the right" width="100%"><p align="center"><sub><b>Charts.</b> Seventeen chart types, Chart Design tab and a Format pane; selecting a chart outlines its source data.</sub></p></td>
@@ -81,19 +81,19 @@
## Why GridCraft
- **Familiar.** Excel's ribbon, formula bar, Name Box, sheet tabs, keyboard shortcuts, fill
handle, point-mode formula entry with coloured references, Format Cells, Paste Special,
conditional formatting, tables, charts and more. If you know Excel, you already know GridCraft.
- **Familiar.** Ribbon, formula bar, Name Box, sheet tabs, keyboard shortcuts, fill handle,
point-mode formula entry with coloured references, Format Cells, Paste Special,
conditional formatting, tables, charts and more. Everything is right where you expect it.
- **Compatible.** XLSX is the native format: styles, themes, formulas (including dynamic arrays),
tables, conditional formats, validation, comments, hyperlinks, charts, pictures, sparklines,
PivotTables and print settings round-trip. CSV and TSV too.
Excel 97-2003 `.xls` workbooks open with their values, formulas and number formats (formatting and objects not yet).
pivot tables and print settings round-trip. CSV and TSV too.
Legacy 97-2003 `.xls` workbooks open with their values, formulas and number formats (formatting and objects not yet).
[XLSB worksheet data can be imported](docs/xlsb-import.md), using saved values instead of formulas.
[ODS worksheet data can be imported](docs/ods-import.md), using saved values instead of formulas.
[Static pictures can live inside cells](docs/cell-pictures.md), fitting their size and moving with the data.
- **Capable.** A dependency-graph calculation engine with dynamic arrays and spilling,
500+ worksheet functions plus LET, LAMBDA, MAP, REDUCE, SCAN, BYROW, BYCOL and MAKEARRAY,
structured table references, Excel's full number-format language, sort and AutoFilter,
structured table references, a comprehensive number-format language, sort and AutoFilter,
Flash Fill, data validation, outlining and subtotals.
- **Fast.** Copy-on-write workbooks (undo snapshots are nearly free), incremental recalculation,
and a virtualised grid that only lays out what's on screen.
@@ -190,7 +190,7 @@ egui frontend is a separate crate, so the UI can be swapped without touching the
| L2 | `model` (workbook, sheets, copy-on-write cells, styles, tables, charts…) · `calc` (dependency graph, evaluator, dynamic arrays) · `xlsx` (XLSX, CSV, plus XLSB and ODS data import) |
| L3 | `chart` (toolkit-free chart layout and rendering) |
| L5 | `engine` (session, commands, history, clipboard, fill, sort, filter, file I/O) |
| L6 | `ui-egui` (Excel-style UI, control channel) · `mcp` (MCP server) |
| L6 | `ui-egui` (spreadsheet UI, control channel) · `mcp` (MCP server) |
| L7 | `apps/gridcraft`, `apps/gridcraft-cli`, `apps/gridcraft-web` |
- **Contributor and agent rules** (clean-room, asset policy, never-crash, quality gates): [`AGENTS.md`](AGENTS.md)
@@ -200,9 +200,9 @@ egui frontend is a separate crate, so the UI can be swapped without touching the
## Roadmap
GridCraft is in **alpha**: the core workflow works end to end, but depth, fidelity and file
compatibility are still rough. It covers 89% of the Excel ribbon commands in our catalog
([`docs/parity-checklist.md`](docs/parity-checklist.md)) and 513 of Excel's 523 worksheet functions
([`docs/function-parity.md`](docs/function-parity.md)); weighted by what Excel users rely on, we
compatibility are still rough. It covers 89% of standard ribbon commands in our catalog
([`docs/parity-checklist.md`](docs/parity-checklist.md)) and 513 standard worksheet functions
([`docs/function-parity.md`](docs/function-parity.md)); this is a parity inventory, not a count of working implementations. Weighted by what spreadsheet users rely on, we
estimate it is about 50% ready for real work. Next up: XLSX fidelity on real-world files, very large
workbooks and multi-threaded recalc, chart depth, text in every script, and `.xls` import. Stage,
numbers and estimates are in [ROADMAP.md](ROADMAP.md); the ranked work list is [`docs/gaps.md`](docs/gaps.md).
@@ -239,7 +239,7 @@ bring back a crash in some Intel UHD Graphics drivers (`igvk64.dll`, #120). The
web backend defaults are unchanged.
**If the app is slow on an older Windows PC, or DirectX 12 can't start:** when DirectX 12 finds no
graphics card with a driver for it, it only offers Microsoft's software renderer, which draws every
graphics card with a driver for it, it only offers the Windows-provided software renderer, which draws every
frame on the processor. In that case GridCraft uses OpenGL instead, without setting anything; if
the first renderer fails to start, it tries the other one once. The log file records the choice
(lines starting with `graphics:`). `WGPU_BACKEND` still overrides it (and then nothing else is
@@ -337,8 +337,6 @@ ArtCraft Team and are not covered by this license. They may be used only unmodif
part of this repository and GridCraft, under [`docs/brand/LICENSE-brand.txt`](docs/brand/LICENSE-brand.txt).
Forks and modified versions must remove them.
<sub>Microsoft, Excel and Microsoft 365 are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. GridCraft is an independent, open-source project and is not affiliated with, sponsored by or endorsed by Microsoft Corporation; these names are used only to describe the workflows it is compatible with.</sub>
<br>
<p align="center">