That's C#, not C++, but OK.
Download the whole repository as a *.zip file and unpack it on your Desktop, for example.
Open the *.sln file in Microsoft Visual Studio.
(If you haven't installed it yet or your system complains that there is no program installed to open it, download Microsoft Visual Studio 2017 Community [ -> Link: https://www.visualstudio.com/de/thank-you-downloading-visual-studio/?sku=Community&rel=15] . In my opinion, that's the best choice without having to pay :-) Watch out having checked the .NET and Visual C# features to install. After install finished, open the *.sln file again.)
After that, a project tree view should have appeared at the left or at the right side, the root item should be the project's name. Click the right mouse button and click "Build" / "Rebuild" or "Compile" (or something like that). If there were no problems compiling it, in some of the subfolders should be the executable. Because this seems very hard to explain, I will compile it as well on my own and will send it to you if you weren't able to do it :)
I don't know if you tried to send me anything, I noticed I have my private messages disabled by default =/
Now I have them enabled!
Do you need my email? Or can you send it from PM?
I appreciate your help if you could do this "work" for me. I will be more confortable to use the application made by you this time.
But I will try your tutorial for sure when I have some time for that. Thank you for your good explanation. It would be nice to try myself to create my own compiled .exe
I have only some newby experience on programming some Macros on excel!
I would like to know more about computer programming. I will focus on how to create my own code in the future and build my first exe. For now, compiling an existing code will be a good start!
Ehm, I meant I would send it to you if you aren't able to do. :)
I'll enable my PM so you can send me your e-mail address so I can send the compiled C# executable to you. I think attachments aren't working on that forum.
Edit: To do that in Visual Studio - go to Project Properties/Settings. A new tab should open up (in earlier versions it did) and search for "Resource" - I think you could set up that somewhere. Else look at answers.microsoft.com - they have got a very good documentation ;)