c# - Refactor nested class - move to separate file - visual studio 2008 -

I am looking for a way to remove nested inner class so that it is in a separate file. Is there an easy way to do this in Visual Studio 2008 (for example, using the Refactor menu)?

Edit

Perhaps a rearrange menu option isn 'if the manual refactoring is quite simple, then it is necessary.

If I understand correctly, you can use partial classes