[Question] WebBrowser and Excel integration in Windows Forms

[rallets]

• .NET Core Version:

.NET 6.0 - Visual Studio 2022

• Have you experienced this same bug with .NET Framework?:

No

Problem description:

Hi, I hope I'm not too much Off Topic.
In a .net 4.7.2 Windows Forms project a WebBrowser control was available. It's not available anymore in a .Net 6.0 project (but I saw some issues here in github mentioning it, so I'm a bit confused, too).
My goal is to use a WebBrowser control to embed a Microsoft Excel stylesheet (so that Excel results inside the Windows Forms application, to avoid context-switching for the end user).
I know this was possible in the past, but I was not able to find more info about the new .net core version. Do you have any plans in supporting this kind of scenario, or do you know an alternative? I can't reproduce this scenario with my pc because I have installed a newer version of Office (365, excel 16) that I was not able to make it work. It should be possible with previous version of Excel/Office (that is exactly my case).
Related to this I could think to re-use a UserControl built in .net 4.7.2 using the latest version and Visual Studio 2022.
Another option could be to open a generic exe-application inside a UserControl.
Could this be something supported from .net 6 & VS 2022?

Expected behavior:

I can use a WebBrowser and then embed Excel.

Minimal repro:

(https://www.codeproject.com/Articles/15760/How-to-Integrate-Excel-in-a-Windows-Form-Applicati)
requires to tweak some registry configs, based on:
(https://social.technet.microsoft.com/Forums/ie/en-US/1fcabd6b-a2e1-4eee-8422-cd77da93ede3/office-2016-open-excel-files-in-ie-11?forum=excel)

[RussKie]

It's not available anymore in a .Net 6.0 project

It is not correct, the control is still available, https://github.com/dotnet/winforms/blob/main/src/System.Windows.Forms/src/System/Windows/Forms/WebBrowser.cs. It is however built on top of the old IE engine, which may no longer work for many web resources (i.e. some website would plainly refuse to render content in it). WebView2 control is a modern alternative, and generally should be considered instead.

[rallets]

Hi @RussKie, thank you for your answer. I'm now using WebBrowser, but for me it's not available in the toolbox, but I can instantiate it directly via code.
For others interested in the same scenario, at the end I reached my goal, and I can show an Excel 2003 (.xls) file inside it, but only in machine with Office 2003 installed (no regedit tweaks needed), instead with Office 365 it opens in a new window.
I used the same code from the link, just with some small adjustments on namespaces and I needed to include the Excel interop dll within the project.