So, I can open the documents on my work computer.

To view the .doc files I'm using Microsoft Office Word - and to view the image I'm using Windows Image Viewer.

Your friend Robin my not have a document viewer.
He can download Open Office at http://downloads.sourceforge.net/pro...tall_en-GB.exe Open Office is Open Source software.

Open Source: Open-source software is software whose source code is published and made available to the public, enabling anyone to copy, modify and redistribute the source code without paying royalties or fees.[19] Open-source code can evolve through community cooperation. These communities are composed of individual programmers as well as very large companies. Many of these individuals programmers who start an open-source project usually end up as large companies with open-source programs.[citation needed] Examples of open-source software products are:[20] [Extract from Wikipedia]

Jason