Undo VS 'Exclude from project'?

Question

Is there a way to undo the \'exclude from project\' operation in Visual Studio (2008) ?

How to include files back into the project after excluding them?

Answer 1

Visual Studio Express 2012

Select Your Project Folder Click On "Show All Files" icon to show all Excluded Folders And Files

Then Right Click on Excluded Folder or File and Click on "Include In Project"