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 high throughput and low memory usage. Handles large spreadsheets efficiently.

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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. Node.js bindings are powered by napi-rs.