How do I rename a file?
There are at least three ways to rename a file…
You could click the file name once to highlight, click a second time to make it available to change, then type in the new file name.
Right click the file and choose Rename. This will highlight the file name allowing you to type in a new one.
Hold down the Alt key and double click the file to open the Properties box. Type the new name in the name box.