NuGet Package Explorer is a ClickOnce application which allows creating and exploring NuGet packages easily. After installing it, you can double click on a .nupkg file to view the package content. You can also load packages directly from the official NuGet feed.
This is a side project of mine and it is NOT an official product from Microsoft.
These details are provided for information only. No information here is legal advice and should not be used as such.