pretty paste is simple Visual Studio Extension which will help you to paste copied text with out extra line.
Supports : Visual Studio 2012
How it works
Just paste any copied code into VS as you normally would. Paste FixR takes care of the rest.
Paste FixR fixes the issue where copied text from IE or Word introduces new blank lines when pasted into Visual Studio. It works by injected itself just before the actual Paste command it executed. From here, it analyses the copied text and removes the extra inserted blank lines.
Typically, the extra blank lines occur on every second line and only in this case is the copied text modified.
Read more and get this extension for your Visual Studio 2012