Re: File Extension help needed

There are many utilities, including free ones that can do this within
windows.
A quick and easy way, however, is to just open a dos command window, go
to the folder you want to change the files in,
and do ren *.* *.abc, where abc is the extension you want. You can use
wildcard in the selection to restrict what gets changes, of course, and
obviously you can't end up with duplicate files (e.g., if the folder
has file1.abc and file1.cdf, they'd both get renamed
with the same extension, and this is an error...)

R

.