Batch Filename Editor is an excellent file administrator that lets you manage them in a professional and friendly way.
From Batch Filename Editor you can process various files at once, replace, delete, insert, move, copy, save the names of all the files in a text file, change a part of the extension, preview, integrate it into Windows explorer, etc.
All the things you do in Batch Filename Editor you can undo, so that you don`t need to worry about making mistakes as you can undo them and start again.