We have talked about lot of file renamers which have features like keeping the old names preserved, regular expressions and even those specially designed for Images created in Digital Camera and today we have another in the list which lets you choose how numbers in files can be treated. For example if you file names as Windows1,Windows2,Windows3 you can skip any number of this like 3 and rename them to Windows4,Windows5 and Windows6. You can either start with a number or just set an offset.
Apart from this it supports regular expression for alphabets and allows you to get a preview of result. In case you had renamed it gives you at least one chance to roll back your file names. Download Renamer