Excel-DNA/ExcelDna
Excel-DNA - Free and easy .NET for Excel. This repository contains the core Excel-DNA library. observed · 2026-08-28
Health v2 · maintenance only
73/100
- Activity 99
- Release rhythm 24
- 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: n/a
- age_days: 4964
- days_rel: 299
- days_push: 10
- n_releases_24m: 1
Adoption not part of the score
1496 stars · 293 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Excel-DNA is an open-source .NET library that integrates .NET code into Microsoft Excel via .xll add-ins. It lets developers write high-performance user-defined functions, macros, ribbon customizations, and task panes in C#, VB.NET, or F#.
Use cases
- create excel user-defined functions in c#
- build an excel add-in with .NET
- migrate VBA macros to .NET
- add custom ribbon tabs to excel
- write high-performance worksheet functions
- package a standalone .xll excel add-in
- call .NET code from excel formulas
When to choose
- you want to extend Excel with .NET languages instead of VBA or C/C++ XLLs
- you need high-performance UDFs with multi-threaded recalculation support
- you want a free, permissively licensed (Zlib) library for commercial Excel add-ins
- you need to support a wide range of Excel versions from a single add-in
When to avoid
- you need cross-platform Excel automation outside Windows
- you are building web-based or Office.js add-ins for Excel Online
- your project is not .NET-based
Facets
library · maturity stable
sdk plugin-system developer-tools developer-tools windows dotnet excel-addins udf xll ribbon interop csharp fsharp vbnet automation excel
5 sources
- readme: https://github.com/Excel-DNA/ExcelDna · fetched 2026-08-28 · 55359b3b937c
- homepage: https://excel-dna.net · fetched 2026-08-29 · 17c576d7ebfa
- site_page: https://excel-dna.net/docs/introduction · fetched 2026-08-29 · 01e2ce2f0b60
- site_page: https://excel-dna.net/docs/category/guides---basic · fetched 2026-08-29 · 637b34015be2
- site_page: https://excel-dna.net/docs/category/guides---advanced · fetched 2026-08-29 · 6d5756973435
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Excel-DNA/ExcelDna | main | 73 |
For agents
markdown · JSON · MCP: product_card(name="Excel-DNA/ExcelDna")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem