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· 2 min read

I have posted to CodePlex ( and the NuGet package manager ( a release candidate of the next Excel-DNA version.

I hope to make a final release in the next few weeks, once I've had confirmation that this version works well on the various platforms and Excel versions.

Please test, and let me know of any problems or surprises you run into, or confirm what features, platforms and Excel versions work correctly.

The CodePlex download is structured as before, and for the NuGet package manager, you can upgrade to the pre-release version with:

PM> Upgrade-Package Excel-DNA -Pre

Excel-DNA 0.32 consolidates a large number of bug fixes and improvements that have accumulated over the last year. In particular, a number of edge cases that affect Excel-DNA add-ins under Excel 2013 have been addressed.

Native asynchronous functions, available under Excel 2010 and later, are now supported. Runtime registration of delegate functions and external retrieval of registration details will allow development of extension features without requiring changes to the Excel-DNA core runtime.

Excel-DNA 0.32 is compatible with version 0.30, and introduces no notable breaking changes. See the Distribution\ChangeLog.txt file for a complete change list.

As always, I greatly appreciate any feedback on this version, and on Excel-DNA in general. Any comments or questions are welcome on the Google group or by contacting me directly.

To ensure future development of Excel-DNA, please make a donation via PayPal or arrange for a corporate support agreement. See for details.

Thank you for your continued support, Govert

· One min read

I've updated and improved the Excel-DNA NuGet package. (NuGet is the Visual Studio package manager that makes it easy to download and install external libraries into your projects.)

To turn your Class Library project into an Excel add-in, just open Tools -> Library Package Manager -> Package Manager Console, and enter

PM> Install-Package Excel-DNA

The Excel-DNA package now has an install script that creates the required .dna file, and a post-build step to copy the .xll and run the packing tool, and even configures debugging. The package should work for C#, Visual Basic and F# Class Library projects on:

  • Visual Studio 2010 Professional and higher
  • Visual Studio 2012 Professional and higher
  • Visual Studio 2012 Express for Windows Desktop

Please post any feedback - bugs, good or bad comments - to the Excel-DNA Google group.