There are 7 repositories under ooxml topic.
EPPlus-Excel spreadsheets for .NET
Python tool and library for decrypting and encrypting MS Office files using passwords or other keys
🍂 A .NET library for manipulating PowerPoint presentations
A WebAssembly build of the Go Excelize library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets
Replace placeholders inside docx documents with speed and confidence.
NanoXLSX is a small .NET library written in C#, to create and read Microsoft Excel files in the XLSX format (Microsoft Excel 2007 or newer) in an easy and native way
Static analysis tools for Microsoft Office Open XML files and documents
Free Microsoft Word document (aka .docx) processing library for .Net
PicoXLSX is a small .NET / C# library to create XLSX files (Microsoft Excel 2007 or newer) in an easy and native way
Docs reference for the Excelize spreadsheet library, and support for the book "Excelize: The Definitive Guide", Chinese (Simplified) 1st Edition
A .NET CLI Package for validating Office Open XML files.
Extension for Jackson JSON processor that adds support for (de)serializing POJOs as Spreadsheets
A VS Code extension for validating Office Open XML files
ECMA 376 (Office Open XML File Formats), 5th edition
NanoXLSX4j is a small Java library to create and read XLSX files (Microsoft Excel 2007 or newer) in an easy and native way. The library is originated form PicoXLSX4j and has basic support of reading spreadsheets