v0.4.0

   🚀 Features

• ReadXlsxObjects / readOdsObjects shorthand  -  by @productdevbook in #178 (abf4f)
• ReadOptions.sheets accepts a predicate function  -  by @productdevbook in #172 (c5991)
• json:
  • Hucre/json entry point — read & write JSON / NDJSON tabular data  -  by @productdevbook in #177 (2da0d)
• web:
  • JSON / NDJSON / XML tabs + Export to NDJSON & XML  -  by @productdevbook (35eb3)
• xlsx:
  • XlsxStreamWriter auto-splits at the Excel row limit  -  by @productdevbook in #170 (fe3e8)
  • Excel 2024 native cell checkboxes  -  by @productdevbook in #157 (4bca9)
• xml:
  • Hucre/xml entry point — read & write XML as tabular rows  -  by @productdevbook in #176 (e64ce)

    View changes on GitHub

v0.3.0

⚠️ Breaking Change: Schema-Driven Report Builder Removed

The schema-driven report builder feature introduced in v0.2.0 (#167) has been removed in this release.

Removed

• fx module (25+ formula helpers: sum, safeDiv, iif, vlookup, etc.)
• Style presets (slate, ocean, forest, rose, minimal) and applyPreset()
• pickColumns() / omitColumns() utilities
• SheetBuilder.objectRows() method
• Extended ColumnDef fields (value, transform, formula, summary, when, headerStyle, children, expand)
• ColumnSummary, ColumnCondition, StylePreset types
• Web playground "Report Builder" tab

Preserved

• Excel table support (WriteObjectsTableOption) from #168
• XlsxStreamWriter.addObject() (simplified to key-only extraction)
• All other v0.2.0 features (R1C1 notation, inline strings, CSV hardening, VBA injection, streaming SAX parser)

Migration

If you rely on schema-driven report building, we recommend xlsmith — a dedicated library for typed column definitions, formula helpers, conditional styles, and summary rows.

For basic writeObjects usage without extended column features, no changes are needed.

   🔄 Reverted

• Revert schema-driven report builder (#167)  -  by @productdevbook and Claude Opus 4.6 (1M context) in #171 (b5abf)

    View changes on GitHub

v0.2.0

   🚀 Features

• Schema-driven report builder  -  by @productdevbook and Claude Opus 4.6 (1M context) in #167 (fa28d)
• Excel table option, context param, streaming addObject  -  by @productdevbook and Claude Opus 4.6 (1M context) in #168 (7f0b0)
• R1C1 notation, inline strings, CSV hardening, VBA injection  -  by @productdevbook and Claude Opus 4.6 (1M context) in #169 (b9f83)
• xlsx: Stream worksheet XML via chunked SAX parser without full decompression buffering  -  by @ejirocodes and Claude Opus 4.6 (1M context) in #137 (3fa0c)

    View changes on GitHub

v0.1.0

   🚀 Features

• Complete spreadsheet engine — XLSX/CSV read/write, schema validation, playground  -  by @productdevbook and Claude Opus 4.6 (1M context) (502bc)
• Auto column width, data validation, hyperlinks  -  by @productdevbook and Claude Opus 4.6 (1M context) (30e54)
• Images, comments, sheet protection  -  by @productdevbook and Claude Opus 4.6 (1M context) (f225b)
• Streaming, tables, named ranges, print settings  -  by @productdevbook and Claude Opus 4.6 (1M context) (9c7e5)
• Conditional formatting, view settings, RTL, rich text, ODS, doc properties  -  by @productdevbook and Claude Opus 4.6 (1M context) (bf8ad)
• Add Streaming and ODS tabs to web playground  -  by @productdevbook and Claude Opus 4.6 (1M context) (aef60)
• Row/column ops, round-trip preservation, unified API, CLI  -  by @productdevbook and Claude Opus 4.6 (1M context) (41630)
• Web worker support, sheet copy/clone  -  by @productdevbook and Claude Opus 4.6 (1M context) (9c5d5)
• HTML/Markdown export, number formatter, page breaks, formulas, oneCellAnchor  -  by @productdevbook and Claude Opus 4.6 (1M context) (c6697)
• Add Export (HTML/Markdown) and Format tabs to web playground  -  by @productdevbook and Claude Opus 4.6 (1M context) (58782)
• DX utilities, ODS parity, XLSX improvements  -  by @productdevbook and Claude Opus 4.6 (1M context) (bee4b)
• 18 issues resolved — spec fixes, features, DX  -  by @productdevbook and Claude Opus 4.6 (1M context) (67300)
• CSV callbacks, JSON export, HTML import, base64 images, coverage  -  by @productdevbook and Claude Opus 4.6 (1M context) (90142)
• 14 features — builder API, template engine, locale fmt, TSV, a11y, more  -  by @productdevbook and Claude Opus 4.6 (1M context) (439cf)
• Sparklines, textboxes, SVG/WebP images, background images, CSV fetch  -  by @productdevbook and Claude Opus 4.6 (1M context) (64b9f)
• Add JSON export button to web playground Export tab  -  by @productdevbook and Claude Opus 4.6 (1M context) (17c96)

   🐞 Bug Fixes

• OOXML element ordering, autoFilter read, Infinity/NaN + new tests  -  by @productdevbook and Claude Opus 4.6 (1M context) (3b945)
• Web playground CSS and import resolution after rename to hucre  -  by @productdevbook and Claude Opus 4.6 (1M context) (fa276)
• HTML export generates dark/light responsive CSS  -  by @productdevbook and Claude Opus 4.6 (1M context) (67fdc)
• Export tab now accepts XLSX/CSV/ODS files instead of JSON  -  by @productdevbook and Claude Opus 4.6 (1M context) (87802)
• ODS spec compliance — 13 fixes for LibreOffice compatibility  -  by @productdevbook and Claude Opus 4.6 (1M context) (ded50)
• 9 spec compliance bugs (ECMA-376, ODF 1.2, RFC 4180)  -  by @productdevbook and Claude Opus 4.6 (1M context) (04d40)
• 14 spec compliance fixes + DX improvements  -  by @productdevbook and Claude Opus 4.6 (1M context) (148a2)

    View changes on GitHub