Google Docs is an online Office suite similar to Microsoft Office installed on a computer. Incase you use both Microsoft Office installed on computer and online Word documents / presentation at Google Docs – you can easily open and edit Google Docs in MS Office software.
Install OffiSync MS Office Addon
This is possible by installing free OffiSync Microsoft Office addon. After the install, you can open Google Docs documents in MS Office. Besides opening, you can edit and save Google Docs from within MS Office. You can also search for folders and files of Google Docs account within MS Office application.

OffiSync Addon works fine on Windows XP, Vista and 7 and is compatible with Microsoft Office 2003 and 2007. Here is demo video:
