Build 4.9.0.20 of xlsgen adds a couple code samples in C# and VB.NET for .NET 6.0, and actually Visual Studio 2022 projects (recently released by Microsoft).

Regarding .NET 6.0 itself, xlsgen works flawlessly without modification. Of course, it assumes your project is targeting Windows, not Linux or Android or even Mac OS.

Code samples use either the regular COM instantiation or the COM-free technique. As a reminder, make sure to always link your project with the correct version of xlsgen.dll, that is, 32-bit if you are targeting a x86 build, 64-bit if you are targeting a x64 or Any CPU build.