Bulk Rename Utility

Greeting All!
first I would like to thanks the developer for the awesome utility! here is my question

I have a folder structure like this:

helloworld\CN_3\xyz.doc

I would like to rename the file to:

helloword.doc

is this even possible? thank you!

Hi , what if there are multiple files in helloworld\CN_3\ ?
Is the rule to always rename into the name of the parent of the containing folder?

Hello Admin,
thank you for the reply, yes( there were multiple files in the last root), those files always stored in the last folder and I always want to rename the files to the first root folder name and keeping the file extension.

Admin wrote:Hi , what if there are multiple files in helloworld\CN_3\ ?
Is the rule to always rename into the name of the parent of the containing folder?

Hello Admin,
thank you for the reply, yes( there were multiple files in the last root), those files always stored in the last folder and I always want to rename the files to the first root folder name and keeping the file exten