Rename Multiple Files At Once - Changing The Extensions

Previously I had posted about Bitdefender renaming the files with .bd.ren extension. Many people have asked me that my solution is working perfectly fine but the problem is that lots n lots of files have been renamed by Bitdefender. So it’s almost impossible to rename them back to original one by one. Here I’m describing a method by which multiple files can be renamed simultaneously in whatever way we want. For this purpose, we’ll use a utility called Renamer.

Renamer is quite a useful utility for renaming groups of files and folders according to our needs. Here’s what renamer can do from publisher’s website:

ReNamer is a small, yet very flexible file and folder renamer, that offers all the standard renaming procedures, including prefixes, suffixes, replacements, case changes as well as advanced options and support for Unicode file names. In addition, it can also remove brackets, add number sequences, remove digits or symbols and change file extensions. The program allows you to combine multiple renaming actions as a rule set, applying each action in logical sequence.

It can be downloaded from here:

  ReNamer 5.3 (1.3 MiB, 638 hits)

Now let’s come to the point. I assume you have already downloaded and installed renamer from the above location. Open renamer and it’s window will show up like the screenshot above. First we have to select the files or folders we have to rename. What I will do is put all my .bd.ren files in one folder and add the folder in rename. To add the folder, select Add folder and select the folder which you want to add. After adding the folder you will see all the files in that folder have been added to renamer window. For demonstration purpose, I have created many text files with .bd.ren extension which we’ll remove in this tutorial. Now click on Add to add a rule:

From the add rule window, select remove from the left hand pane. Now in the right hand pane, write .bd.ren in the text field and uncheck Skip extension. Here’s a screenshot of what you have to do:

Now click on Add Rule button. The rule to remove .bd.ren has been added. Now you can click on preview to see the effect of this rule. The screenshot of my preview was like this:

You can see on the right hand side, all the files have been renamed to their original format and .bd.ren has been removed from the end. If you are having any type of difficulty doing this, please let me know through comments.

Tags: .bd.ren, Bitdefender, file extensions, file names, folder renamer, rename multiple files