DiskSorter Pro is a file classification utility that enables you to scan your hard drive(s) and create a report that categories and classifies your files based on their size, extension, file type, access time and other pre-configured classification rules. Other features include export of reports to HTML, Excel CSV and text formats, multi-threaded operations, support for UNC names and more. DiskSorter Pro can process up to 5 Million files in one operation, an upgrade to the "Ultimate" edition is required if you need to scan more than that.