Short description of Duplicate File Finder .NET 1.3.0.0: Duplicate File Finder .NET (1dff.NET) is a utility that allows you to find all similar and duplicate files. It also eliminates clone files that are cluttering up your hard drive. Duplicate File Finder .NET uses advanced algorithms to find similar files, so it can find similar files even if they are in different formats, different extensions and sizes. All the features of the program were carefully chosen to make the tool as simple as possible.