1. Somewhere in your email application there should be a button like, "attach
file" or some such description.
Click on that button.
2. Then you can normally type in where the file is, for example, something
like:-
c:\windows\pam.docx
- then hit the Attach button.
3. Alternatively to number 2 above there is usually a:-
Browse
- button. Hit that button / find your file / click attach to attach to your
email.
Hope the above clears things up for you.