Final answer:
The fastest method to rename a file is by using the keyboard shortcut Ctrl+R.
Step-by-step explanation:
The fastest method to rename a file is by using the keyboard shortcut Ctrl+R. This shortcut opens the rename option for the selected file directly and is quicker than clicking on the file multiple times. Clicking on the file can either open it or select it, but it does not provide a direct method to rename it.
Learn more about Renaming files