Fast Duplicate File Finder is a duplicate file finding tool that can easily search for duplicate files in a certain folder; the program is based on fast binary comparison rules and supports previews of pictures, videos, music and text, by comparing file contents Determine whether it is a duplicate file, so even if there are different file names, it will not be affected. After scanning, Fast Duplicate File Finder will automatically select the files that were created earlier as files to be deleted, and its automatic marking rules also support advanced settings, including setting extensions, file sizes, file dates, file names, etc. Of course you You can also set folders that need to be excluded, so that system files and folders can be protected.