The 1.0.0.1 version of X DupFile is provided as a free download on our website. The program's installer is commonly called xdf.exe. The actual developer of the software is Xmatrix Software, Inc. X DupFile is included in System Utilities. The most popular version among the program users is 1.0.
From the developer:
X DupFile is a safe, affordable, and easy-to-use duplicate files find and delete solution, designed to find and delete duplicate files from your hard drives, floppy drives, and other types of fixed media. Finds and deletes duplicate files flexibly from your hard drives, floppy drives and other types of fixed media.
You may want to check out more software, such as DupFile or Duplicate File Finder for Windows, which might be related to X DupFile.