dotnet/Open-XML-SDK
Open XML SDK by Microsoft observed · 2026-08-28
Health v2 · maintenance only
86/100
- Activity 98
- Release rhythm 63
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 86.5
- age_days: 4472
- days_rel: 168
- days_push: 15
- n_releases_24m: 5
Adoption not part of the score
4589 stars · 605 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Microsoft's Open XML SDK is a .NET library for programmatically working with Word, Excel, and PowerPoint documents via the ISO 29500 Open XML format. It provides strongly-typed classes and LINQ to XML access to OPC packages and Open XML markup for high-performance document generation and manipulation.
Use cases
- generate word documents programmatically
- create excel spreadsheets without office installed
- modify pptx presentation files in .net
- search and replace text in docx files
- merge or split office documents
- update chart data embedded in word documents
- read office file metadata
When to choose
- you need to create or edit Office files in .NET without Office installed
- you need high-performance bulk generation of docx/xlsx/pptx files
- you're comfortable working with the Open XML format at a low level
When to avoid
- you want a high-level document API with simple abstractions
- you need to render or convert documents to PDF or images
- you work outside the .NET ecosystem
Facets
library · maturity stable
serialization parser developer-tools files developer-tools dotnet cross-platform openxml docx xlsx pptx office-documents microsoft-office opc-packages automation
3 sources
- readme: https://github.com/dotnet/Open-XML-SDK · fetched 2026-08-28 · e24089c931ff
- homepage: https://www.nuget.org/packages/DocumentFormat.OpenXml/ · fetched 2026-08-29 · 899de71ae99c
- site_page: https://www.nuget.org/policies/About · fetched 2026-08-29 · a113b8a074c9
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| dotnet/Open-XML-SDK | main | 86 |
For agents
markdown · JSON · MCP: product_card(name="dotnet/Open-XML-SDK")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem