Excel-DNA/ExcelDna

View on GitHub

Excel-DNA - Free and easy .NET for Excel. This repository contains the core Excel-DNA library.

Stars: 1.5k
Forks: 292
Open beginner issues: 0
Indexed issues: 165
Avg merge: 20d 12h
Merged PRs (30d): 1

Dominant language: C#
License: Zlib
Last GitHub push: Sep 12, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: hacktoberfest help wanted good first issue

Open All

165 open issues indexed

Automatically replace XLL version information with data read from an assembly Open

enhancement

Excel-DNA/ExcelDna#15 · 35 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
COM registration may fail with roaming profiles Open

confirmed-bug

Excel-DNA/ExcelDna#31 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Align ExcelDnaDoc build with new ExcelDna.AddIn build Open

enhancement

Excel-DNA/ExcelDna#32 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AddInReloader Rtd Issue Open

Excel-DNA/ExcelDna#33 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add TlbExp option to build targets Open

enhancement

Excel-DNA/ExcelDna#36 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Investigate assembly redirection in .xll.config files Open

confirmed-bug

Excel-DNA/ExcelDna#41 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Fix AppVeyor build Open

Excel-DNA/ExcelDna#49 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Add a check to ExcelReference for valid SheetId Open

Excel-DNA/ExcelDna#54 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Allow complete unloading of add-in - implement DllCanUnloadNow() Open

enhancement

Excel-DNA/ExcelDna#67 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AutoOpen InvalidOperationException while AutoUpdate Open

Excel-DNA/ExcelDna#83 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Store and return untruncated attribute descriptions Open

hacktoberfest help wanted up-for-grabs

Excel-DNA/ExcelDna#85 · 0 comments · 4 reactions · 0 assignees · Indexed Sep 15, 2026
Excel scripting editor and awaitable execution on the main thread Open

Excel-DNA/ExcelDna#91 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Investigate and write up signing and Trust Center for RTD server Open

Excel-DNA/ExcelDna#97 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Revisit event handling when Excel is OLE embedded Open

Excel-DNA/ExcelDna#108 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Move excel-dna.net website to GitHub pages Open

documentation

Excel-DNA/ExcelDna#129 · 11 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Check for and notify about "Disabled Items" for Ribbon and RTD Server Open

enhancement

Excel-DNA/ExcelDna#141 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
User config file not properly written with v0.34 (crashes all other Add-Ins) Open

confirmed-bug

Excel-DNA/ExcelDna#143 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
User.config file path should have the name of the add-in's assembly Open

confirmed-bug

Excel-DNA/ExcelDna#144 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Refactor build tasks to run common task as a dependency Open

enhancement

Excel-DNA/ExcelDna#146 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Function returns a #VALUE! when it should return #NAME? Open

Excel-DNA/ExcelDna#157 · 18 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Access Violation on Excel 2010 shutdown with CustomTaskPane Open

Excel-DNA/ExcelDna#176 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support for Excel Udfs inside Nested Classes Open

Excel-DNA/ExcelDna#179 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Excel-DNA Roadmap Discussion Open

discussion

Excel-DNA/ExcelDna#189 · 21 comments · 14 reactions · 0 assignees · Indexed Sep 15, 2026
Sign our NuGet packages before submitting to nuget.org Open

Excel-DNA/ExcelDna#198 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
.dna could not be loaded exception demo Open

Excel-DNA/ExcelDna#200 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Investigate Edit-and-Continue vs. PIA Embed-Interop-Types Open

documentation enhancement

Excel-DNA/ExcelDna#201 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
GetWindowHandle15 throws InvalidComObjectException Open

Excel-DNA/ExcelDna#208 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
RTD functions are recalculated on cut+paste any cell in a sheet Open

Excel-DNA/ExcelDna#209 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
UpdateNotify/UpdateValue not triggering Cell to update while Excel window is minimized Open

Excel-DNA/ExcelDna#212 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
After office365 is closed, the xll file is locked Open

Excel-DNA/ExcelDna#215 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Ribbon/Com-Addin helper could not be registered Open

Excel-DNA/ExcelDna#220 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
RTD with multiple allow reference args will block caculation Open

Excel-DNA/ExcelDna#221 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ExcelDNA causes Excel crash when resizing an UDF that is located inside a sheet that is hidden Open

Excel-DNA/ExcelDna#222 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
` ExplicitExports="true"` doesn't seem to work Open

hacktoberfest help wanted up-for-grabs

Excel-DNA/ExcelDna#229 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Slow async UDF Open

Excel-DNA/ExcelDna#232 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Improve support for custom command-line arguments when debugging add-ins Open

enhancement hacktoberfest help wanted up-for-grabs

Excel-DNA/ExcelDna#238 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AutoGenerateBindingRedirects doesn't work properly Open

confirmed-bug hacktoberfest help wanted up-for-grabs

Excel-DNA/ExcelDna#241 · 2 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
Thread safe UDF with RTD Open

Excel-DNA/ExcelDna#246 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Office 365 does not open blank workbook after startup if ExcelDNA Addin is active Open

Excel-DNA/ExcelDna#254 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Excel-DNA does does not enable Visual Styles (loads old version of COMCTL32) Open

confirmed-bug

Excel-DNA/ExcelDna#257 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Function argument dialog not showing when I use HTMLAgilityPack in a function Open

Excel-DNA/ExcelDna#261 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Error message: "Attempting to load MY-ADDIN.RESOURCES.EN-US from resources." Open

Excel-DNA/ExcelDna#262 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Error logging problems Open

hacktoberfest help wanted up-for-grabs

Excel-DNA/ExcelDna#268 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Expose `ExcelDnaUtil.IsApplicationOK` (or similar) (?) Open

hacktoberfest help wanted up-for-grabs

Excel-DNA/ExcelDna#269 · 9 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
First book created is called Book2 when ribbon add-in installed Open

hacktoberfest help wanted up-for-grabs

Excel-DNA/ExcelDna#272 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Allow developers to remove the `LogDisplay` trace listener Open

enhancement

Excel-DNA/ExcelDna#274 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add support for structured logging for diagnostics Open

enhancement

Excel-DNA/ExcelDna#277 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Performance issue about ExcelDna in Excel 365 Open

Excel-DNA/ExcelDna#281 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Hard coded references to App.config prevents use of config transforms in build. Open

hacktoberfest help wanted up-for-grabs

Excel-DNA/ExcelDna#282 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Make RtdTopic's Value, UpdateValue and UpdateNotify virtual? Open

Excel-DNA/ExcelDna#285 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

Excel-DNA/ExcelDna

Get new issues in your inbox