How to rename multiple files using the command prompt (cmd) in Windows?

To rename multiple files using the command prompt (cmd) in Windows, you can use the ren command, which is short for "rename". Here's how:

Open a command prompt window by pressing the Windows key + R, typing "cmd" in the Run dialog box, and pressing Enter.
Navigate to the folder containing the files you want to rename by using the cd command. For example, if your files are in a folder called "Documents", you can navigate to it by typing cd Documents and pressing Enter.
Once you are in the folder containing the files you want to rename, use the ren command followed by the old name of the file, a space, and the new name you want to give it. For example, if you want to rename a file called "oldname.txt" to "newname.txt", you can type ren oldname.txt newname.txt and press Enter.
If you want to rename multiple files at once, you can use wildcards to specify a pattern that matches the files you want to rename. For example, if you want to rename all files with the extension ".txt" to ".docx", you can type ren *.txt *.docx and press Enter. This will rename all files in the folder with the extension ".txt" to ".docx".
Once you have typed in the ren command with the appropriate parameters, press Enter to execute it. Windows will rename the files according to the new names you specified.

Note that the ren command does not provide a preview of the changes before renaming the files, so it's important to make sure you have the correct file names and patterns before executing the command. Also, be careful not to overwrite any important files by accidentally giving them the same name as another file in the same folder.

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