MacBook :: Emailing Documents To A Pc?

Evening folks,

Here's the situation....

I've been sent a word document that i need to fill in and return via email (to a pc user) using my hotmail, is this going to be possible.?

I tried writing a few basic documents in pages and neo office and sending them to my pc but they would not open. Have i missed something out?

The only alternative i see is using my Apple Mail Application and converting the file. The downside being that whilst my hotmail works perfectly as a stand alone, when syncing it with my Apple Mail I loose all of my sent items and folders.