cjnoname/excelts v6.0.0

on GitHub

6.0.0 Stable Release

Major rewrite with cross-platform streaming, zero-dependency archive (ZIP/TAR), CSV, and stream modules. Each module can be used independently via @cj-tech-master/excelts/zip, /csv, /stream — no need to pull in the full Excel engine.

⚠️ Breaking Changes

This is a major release with significant breaking changes. See MIGRATION.md for the complete migration guide.

Key breaking changes:

• Package: New subpath exports — archive, CSV, and stream modules can now be imported independently via @cj-tech-master/excelts/zip, /csv, /stream, enabling tree-shaking and smaller bundle sizes without pulling in the full Excel engine
• CSV: workbook.csv accessor removed — use workbook.readCsv() / workbook.writeCsv() directly
• CSV: Parse/format option names changed (transform → rowTransform, strictColumnHandling → columnMismatch, ignoreEmpty → skipEmptyLines, rowDelimiter → lineEnding, etc.)
• CSV: Standalone API restructured — import from @cj-tech-master/excelts/csv
• Stream: BufferChunk → ByteChunk, normalizeWritable → toWritable, once → onceEvent
• Stream: Binary utilities moved to main entry or @utils/binary
• Archive: UnzipEntry.isDirectory removed — use entry.type === "directory"
• Archive: Browser entry no longer re-exports archive APIs — use @cj-tech-master/excelts/zip
• Excel: Image → ImageData, ZipOptions → WorkbookZipOptions
• Excel: Error types changed to structured ExcelError subclasses
• Excel: sheet-utils removed — use native Worksheet.toJSON(), ws.addJSON(), ws.addAOA() etc.
• EventEmitter: emit("error") with no listener now throws (Node.js parity)

Features

• Archive: ZIP/TAR read/write with full streaming, encryption (ZipCrypto + AES), ZIP64, remote HTTP Range reading, progress/abort, browser Worker Pool
• CSV: Unified parse/format API, streaming, Web Worker pool, dynamic typing, DoS protection, delimiter auto-detection
• Stream: Full cross-platform implementation with Node.js parity in browsers
• Excel: Chart/drawing preservation, structured error classes, sheet-utils integrated natively

Bug Fixes (since beta.1)

• Encrypted entries in streaming ZIP parse mode
• Data descriptor consumption after known-size pump
• RowValues type widened for plain object assignment
• OOXML _xHHHH_ escape decoding
• WorkbookReader/WorksheetWriter fixes
• CodeQL security alerts resolved
• Windows build compatibility