How do I change file-extension from ".PSD" ( all capitals ) to ".psd" ( NO capitals ).........

[thebold but not beautiful]

How do I change file-extension from ".PSD" ( all capitals ) to ".psd" ( NO capitals ).........?????

[D Fosse · Accepted solution]

Here:

But that will only change new extensions. To change existing, you can do it in Bridge "Batch Rename":

[Stephen_A_Marsh]

And if existing files have mixed extensions, such as both JPG and PSD and you don't wish to select and rename them separately: