Included on this page are NiCad extensions I have built for my research.  Perhaps they will be useful to you.

File Granularity
This extension enables clone detection of clones at the file granularity.  Supports the Java, C and C# languages.

06-02-2013 - Release of version 0.1.  Minimally tested version.

Click here to download.  Installation instruction are included in the bundled ReadMe.