Error Message:

The filename file already exists. Do you want to overwrite it?

Explanation:

You attempted to save a Notepad file under the name of a Notepad file that already exists.

User Action:

If you want the currently open Notepad file to replace the older file of the same name, select Yes. If not, select No option, then assign the current file a different name. If you want to return to the currently active file, select Cancel.