I'm not sure if my question is going to make sense, but it's something that I've wondered about for a long time and thought I'd finally ask!

Let's say I create a document in Word called ABC.doc. I save it to my Desktop so it'll be handy.
I want to send it to my friend, so I attach it to my email to her.
OOPS! I left something off the document that should have been there! I'd better go back into the ABC.doc and make the correction, so the information will be correct.
When my friend opens the document, will she see the original version or the changed version?
~~~~~~~~
Ok, slightly different scenario.
I create the document. Save it. Attach it. All the same as the above.
Golly gee, my Desktop's getting full! I'm going to go ahead and delete some files from my computer to clean things up a bit.
My friend opens my attachment. Will she see it? It's gone from my computer, but it's been attached to the email I sent her. Is it still viewable for her?
Just wonderin'!