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Another alternative is downloading the trial and then using your serial key to activate the copy. Not sure of the legalities of using multiple copies with one serial so watch out.
 
Another alternative is downloading the trial and then using your serial key to activate the copy. Not sure of the legalities of using multiple copies with one serial so watch out.

If you are using the home/student version of office it comes with 3 licenses.
 
Another option (maybe too late to chime in) is to just download (legal or not) a version of the software and just use your legal code to register it. That is what I did with Windows since the CD sharing is incredibly slow.

I used my Pro to create a disk image of the installation disk and then just transferred the image to my Air.
 
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