1. Click on "Save" button on the toolbar, or click on "File" in the menu bar and choose "Save" from the menu.
2. When the pop-up window appears, type in a page name, or click on one of the available files to save over that file.
3. Click "Save."

Note: You can't use spaces in your file name. You can only use letters, numbers, underscores (_), dashes (-), and periods (.) in a file name.