Here's the link
http://www.microsoftstore.com/store?SiteID=msusa&Locale=en_US&Action=DisplayProductSearchResultsPage&result=&keywords=word+2013
`
Good luck.
I don't want to risk a download that will cause problems with my computer so I'm looking for a trusted site

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic