ClosedXML/ClosedXML

ClosedXML

✅ Recently maintained

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.

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C# · MIT · Last push 2026-10-21

Official repository & installation ↗
closedxmlopenxmlexcelxlsxxlsmhacktoberfesthacktoberfest2020

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2025-09-292026-11-02
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Get the project

git clone https://github.com/ClosedXML/ClosedXML.git

Cloning downloads the source. For dependencies and installation, follow the project README.

Related projects & alternative candidates

Related domains do not imply feature parity. Review official documentation and licenses.