Hi Twee,
You could create a batch file to do them all for you...
Create a new text file called something.txt
Add a new line for each file you want to rename:---
RENAME [drive:][path]filename1 filename2
eg -
RENAME c:\04DOC3.DOC DOC3.DOC
RENAME c:\12DOC5.DOC DOC5.DOC
Save the file and rename it to something.bat
double click it...
It will run through each line using the RENAME command to change the names.
By putting it in a batch file it might be quicker to edit all the filenames in one go.
Hope this helps...
ps - I just tried this and it is ok, but you may need to put " " around the filenames if the path has spaces in it...
ps(2) - to save even typing the filenames have a glance through the following link
http://www.labnol.org/software/tutorials/rename-multiple-files-bulk-excel-googl-docs/2481/