#Ooxml

qax-os

excelize

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

unidoc

unioffice

Pure go library for creating and processing Office Word (.docx), Excel (.xlsx) and Powerpoint (.pptx) documents

yukiyokotani

office-open-xml-viewer

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

xuri

xgen

XSD (XML Schema Definition) parser and Go/C/Java/Rust/TypeScript code generator

xuri

excelize-py

Excelize is a Python port of Go Excelize library that allow you to write to and read from XLAM / XLSM / XLSX / XLTM / XLTX files.

knowledgestack

excel-parser

XLSX parser for LLMs, RAG, LangChain, LangGraph, CrewAI, Claude, MCP — turns Excel (.xlsx) into citation-ready JSON with formulas, charts, dependency graphs, and token-counted chunks. Open-source Python library (MIT).