openmcdf/openmcdf

a .NET library that can read/write Office formats without Microsoft Office installed. No COM+, no interop.

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

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

C# Outlook MSG file reader without the need for Outlook

Open XML SDK by Microsoft

ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface to dealing with the underlying OpenXML API.

LibObjectFile is a .NET library to read, manipulate and write linker and executable object files (e.g ELF, PE, DWARF, ar...)

PowerPoint .NET library for reading, modifying, and generating PPTX presentations without Microsoft Office

🌌 Extend and automate Microsoft Office applications using NetOffice framework.