SheetKitHigh-Performance SpreadsheetML Library

Read and write Excel (.xlsx) files at native speed. Built in Rust with first-class TypeScript bindings.

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Native Performance

Written in Rust for maximum throughput and minimal memory usage. Process large spreadsheets without breaking a sweat.

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Styles, charts, images, formulas, conditional formatting, data validation, pivot tables, streaming writer, and more.

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Strongly typed APIs in both Rust and TypeScript. Use the same library natively or via seamless Node.js bindings powered by napi-rs.