Fast File Renamer is a freeware program which can help you with the tedious task of renaming large numbers of files. The program can be used by anyone who needs to keep large collections of files organized (such as mp3 files, image and graphics files, web-site-related files, system files).
Fast File Renamer also has a 'simulate' function where you can preview the effects of any changes before applying them and it supports the use of the '*' wildcard character (inside the pattern which is to be deleted or replaced).
