File Types Report
The File Types report, shown below, classifies files by type based on file extension (e.g. .doc, .xls, .jpg, etc.). Complete file size, size on disk (allocated size), extension, and count information is shown for each file type.
Double-click any file type report row to view a list of files that match the associated file type.
FolderSizes also offers a File Type Groups report, which groups file types by user-configurable categories.
The file type graph view can switch between bar and pie graph modes. The bar graph view is shown above.