ooxml topic

Python tool and library for decrypting and encrypting MS Office files using passwords or other keys

nolze

OOXML password remover

nedlir

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

qax-os

Create advanced Excel spreadsheets using .NET

JanKallman

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

unidoc

Converts Microsoft Word docx to LaTeX

transpect

a ruby library/gem for interacting with .docx files

ruby-docx

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

xuri

EPPlus-Excel spreadsheets for .NET

EPPlusSoftware

Fast and reliable way to work with Microsoft Excel™ [xlsx] files in Golang

plandem