Welcome to the modern-xlsx wiki — comprehensive knowledge base for the library.

Current version: v0.9.0

• Getting Started — Installation, setup, and your first spreadsheet
• Browser & CDN — Use directly in browsers via jsDelivr or unpkg
• API Reference — Complete API documentation
• Styling Guide — Fonts, fills, borders, alignment, number formats
• Examples — Common patterns and recipes
• Feature Comparison — modern-xlsx vs SheetJS (250 features compared)
• Performance — Benchmarks, optimization tips, and architecture
• Encryption Guide — Read and write encrypted XLSX files
• FAQ — Common questions and troubleshooting

• Migration from SheetJS — Side-by-side API comparison
• Migration from ExcelJS — ExcelJS → modern-xlsx patterns

• Architecture — Rust WASM + TypeScript hybrid design
• Changelog — Release history

• GitHub Repository
• npm Package
• Documentation Site
• Interactive Playground
• Issue Tracker

• Pivot Tables (read-only) — full OOXML pivot table, cache definition, and cache records parsing
  • ws.pivotTables read-only API
• Threaded Comments (read + write) — modern threaded comment threads with person management
  • ws.addThreadedComment() and ws.replyToComment() APIs
• Slicers (read-only) — slicer definitions and caches for pivot table filtering
• Timelines (read-only) — timeline definitions and caches for date-based pivot filtering
• CLI Tool — modern-xlsx info and modern-xlsx convert commands
• Feature-Gated WASM — encryption and charts Cargo features for smaller bundles
• ModernXlsxError — structured error handling with .code property
• Performance — 4-8x faster bulk read/write, XML buffer pre-allocation
• Full Changelog