Office 2010 Professional "Technical Preview". A look at the refined user interface, basically. Running on Windows 7 Ultimate Build 7127 "Pre-RTM". ---- Below are links to download Office 2010. Remember, it's a beta. Use WinRAR or similar to open the .iso file. Double click on one of the many .iso files; WinRAR will AUTOMATICALLY COMBINE THE SPLIT FILES. Then, with all the files extracted, extract the contents of the setup.exe file. Then, run the executable you've just extracted. Otherwise "Setup cannot find the source file..."