There was a time that i want to change the file name but not only 1 or 2 files, it a lot of files and placed on several directory. How do i do it then? here we go:
Windows command prompt: (If inside a batch file, change %x to %%x)
for /r %x in (*.html) do ren "%x" *.htm
This also works for renaming the middle of the files
for /r %x in (website*.html) do ren "%x" site*.htm
Above script was for Windows.