Tweaki/FileName Pro Bundle 

Now you can get the award winning power and customization features of Tweaki with the file renaming options found in FileName Pro --for one low price!
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FileName Pro 

Whether you have a few or thousands of files to rename, FileName Pro can rename your files in seconds. Files can be named based on any number of file naming schemes you can configure, even move files to a new folder. Includes undo.
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