#xlsx

Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets

Lightweight, fast and simple cross-platform processing tool for importing and exporting spreadsheet documents.

Transforms complex documents like PDFs and Office docs into LLM-ready markdown/JSON for your Agentic workflows.

Read and write spreadsheet files (CSV, XLSX and ODS), in a fast and scalable way

The fastest Office document library for Python, Rust, Go, JS/TS, C# and WASM. DOCX, XLSX, PPTX, DOC, XLS, PPT. Up to 100× faster than python-docx/openpyxl/python-pptx. 100% pass rate on valid Office files. MIT/Apache-2.0.

Browser-native Office / PDF / CAD / archive viewer for internal web apps, with Vue, React, Svelte, jQuery, Web Components, and no server-side conversion.

loads CSV, TSV, LTSV, JSON, JSONL, Parquet, XLSX, ACH, and Fedwire files into SQLite; includes prep and frame for cleanup and in-memory transforms

Swiss-army toolkit for .docx — faithful DOCX→HTML rendering, an in-browser block editor, Word-grade redlines with native tracked changes, and anchor-addressed markdown for LLM agents. .NET, WASM/TypeScript, Python, CLI.

A lightweight Typescript library that interacts with Gotenberg's different modules to convert a variety of document formats to PDF files.

🦉 Fast Excel import/export for Laravel

MIT-licensed, COM-free .NET libraries for creating, reading, editing, converting, rendering, and extracting Office, PDF, email, OneNote, and text formats.

HTML to DOCX converter

A robust, strictly-typed Node.js and Browser library for parsing office files into a rich Abstract Syntax Tree (AST) and generating high-fidelity output in multiple formats. Parses: docx · pptx · xlsx · odt · odp · ods · pdf · rtf · csv · md · html. Generates: Markdown · HTML · CSV · RTF · PDF · Plain Text · RAG Chunks

Zero-dependency spreadsheet engine. Read & write XLSX, CSV, ODS. Pure TypeScript, works everywhere.

A pure Rust Excel/OpenDocument SpreadSheets file reader: rust on metal sheets

The fastest embeddable spreadsheet engine - parse, evaluate & mutate Excel workbooks from Rust, Python, or the browser. Arrow-powered, 400+ functions.

모두 파싱해버리겠다 — HWP·HWPX·PDF·Office 문서를 Markdown으로. 양식 자동 채우기와 신구대조를 갖춘 CLI·MCP 서버 | Convert Korean documents (HWP, HWPX, PDF, Office) to Markdown — CLI and MCP server with form filling and diff

Python binding for Rust's library for reading excel and odf file - calamine.

Datagrunt is a Python library designed to simplify the way you work with CSV, Excel, Parquet, and PDF files. It provides a streamlined approach to reading, processing, and transforming your data into various formats, making data manipulation efficient and intuitive.

High-performance Excel and CSV file generation powered by Rust (~7-9x faster)

Lightweight Office-to-PDF libraries and command-line tools for Rust, .NET, Java, Python, JS, Python.

🐘 A PHP client for interacting with Gotenberg.

javascript based business reporting platform :rocket:

A browser-based viewer for Office Open XML documents that renders to an HTML Canvas element.

MIT-licensed PowerShell document automation for Word, Excel, PowerPoint, PDF, email, PST/OST, OneNote, Visio, OpenDocument, and mixed-format Reader workflows.