Instead of copying the file into the project directory, Visual Studio will create a link to the original. That way, if you modify the original file you'll. Visual Studio - Add File As Link. We have a particular project in our solution at work, serving as a data access layer. It contains classes with two. Extension for Visual Studio Code - Open a link directly in vscode. It's just the same as adding each file as link manually but faster. explorer with all linked files inside, instead of all the files appearing in the root of the solution.