FlexSize is a storage utilization analysis tool. FlexSize is capable of scanning huge file systems containing millions of files and visualizing storage utilization patterns. The tool allows one to detect storage space concentration hot-spots and export storage utilization reports into a number of standard formats such as HTML, Excel CSV and ASCII text.

Note: The Express edition will analyze a maximum number of 250,000 files and 1TB of hard drive space.

Ссылка: http://www.flex..ze/setups/flexsize_express_setup_v1.5.20.exe