How do I attach Visual Studio to a process that is not started yet?

Question

I have .NET program that can\'t be run from Visual Studio for some reasons (Excel file created from an Excel 2010 template project) for which I need to debug startup events.

Answer 1

Follow these steps if you have Visual Studio 2017-2019:

1. File > Open > Project/Solution
2. Choose your .exe
3. Debug > Start Debugging

Much easier than other suggestions: you don't have to mess with project properties, and no extensions are needed.