Searching for mac files of same name but in a different format

I have a batch of files and need to search/gather files of the same name but in another format (as opposed to manually searching for the files which would take forever!),

eg. I have a list such as fredbloggs.pdf joesmith.pdf benjones.pdf

..and need to find on my mac fredbloggs.txt joesmith.txt benjones.txt

..is there any software out there that can match up files like this?

Thanks!


You can just type kind:txt in finder search. This will give you all of the txt files on your system.