You can automate many tasks on your Windows 11 PC using batch files. I’ll explain what a batch file is, how you can create one, and show you some interesting and useful uses of these files.

For example, to create a batch file that would start Notepad and open a new Explorer window that shows a certain folder, you could put these two lines into the batch file: ...

However, there is another method. In this case, you can use your Notepad to create a batch file, which will rename all the file extensions in a specific folder and all sub-folders at once.