In Microsoft Office, you can quickly type international characters one by one, or set up AutoCorrect to do it automatically. And when you set this up in Word, for example, it’ll work across the other software.
This video only shows you how to type the alpha e with an accent. Once you’re clear on how to do it, use this list of keyboard shortcuts from Microsoft for a lot more. http://bit.ly/1GBa5Iy
In addition to the tips in the video and this list, you can also insert international characters using symbols. In Word, click the Insert menu, Symbol, More Symbols. But I like quick and easy…set it and forget it.