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dotnet/Open-XML-SDK ★ 4599 605 APPLICATION

This is the Microsoft Open XML SDK, a production-grade .NET library for reading, writing, creating, and validating Office Open XML documents (Word, Excel, PowerPoint). It provides a strongly-typed DOM (OpenXmlElement hierarchy), LINQ-to-XML integration via generated XName constants, Flat OPC serialization, and a comprehensive validation framework based on the OOXML standard. The architecture combines hand-crafted foundations (OpenXmlElement, OpenXmlPart, OpenXmlPackage, FeatureCollection pattern) with schema-driven source generators that produce hundreds of typed classes, part definitions, and namespace constants from bundled JSON metadata. Key entry points are WordprocessingDocument, SpreadsheetDocument, and PresentationDocument, each with static factory methods (Open, Create, FromFlatOpc). The library is actively maintained by Microsoft, supports Office versions from 2007 through Microsoft365, and includes numerous samples, extensive xUnit tests, and performance benchmarks.

RATING: 9.0/10 MAINT: active DRIFT: low
#office-open-xml #dotnet #sdk #document-processing #code-generation #validation-library #strongly-typed-dom #openxml-format #office #pptx #docx
▸ 3 reusable components found
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