I came across this utility and it seems very powerful. Unfortunately, I cannot figure out how to use it.

Can someone please help me?
Basically I have TIFF files in one folder that start from 005.tif to 180.tif.
I need to start the numbering from 001. So basically 005 should be 001 and 180 will be 175. I hope this makes sense.
Would BRU be able to do this?
Would greatly appreciate any help. Thanks!!