This program creates an Extension Report of the files in the specified folders or drives. It gives the list using the common control's List View, which can be sorted on various fields like the Windows Explorer. The first path must be specified in the path box or "All" can be specified; this is like "My Computer," which scans all the drives.
This program helps analyze which extensions occupy how much space in the drive. This helps you get an idea of whether to compress files with specific extensions or do the needful.