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THE FIRST COLLECTIONAn MIT-licensed family of independent TypeScript packages that convert losslessly between OOXML, OpenDocument, Markdown, EPUB, PDF, RTF and legacy formats through one shared Zod schema, with a CLI, MCP server and web UI built on top.
Excelize is a pure Go library for reading and writing Microsoft Excel spreadsheets in XLAM, XLSM, XLSX, XLTM and XLTX formats. It supports Excel 2007+ files, chart and image insertion, complex spreadsheet components, and a streaming API for large worksheets.
