About File Extensions for Microsoft/PC: This PDF file tells you why you can't always open up a file someone sent you.

About File Extensions for Apple/Mac: This PDF file explains why you can't always open up a file someone sent you.

Keyboard Commands: The power of using the keyboard with the "Ctrl" key (A PDF file)

Internet Definitions: Talking the talk confidently (A PDF file).

Googling your problem: (1) Go to www.google.com and type in key words to the problem.

Help Using the "Help" menu in an application: Almost every application has a "Help" menu at the top of the screen. Once you learn how to use this "digital manual," it can be a powerful tool that will assist you in learning how to use the application's various features. A "Help" menu is as good as its authors: some are good and some are not. To use a "Help" menu in an application, (1) Click on the "Help" menu (usually the furthest menu on the top right). (2) Select a "Help" option. (3) Click on a topic, select the index, or type in key words like "cut and paste" or "create labels", etc. (4) A window should open with the how-to information and possibly additional links for more information.