Microsoft Office is not free and a full version is not legally available
for download, although you can download a trial version that expires
after a few weeks. If you want Microsoft Office, then you can purchase
it like the rest of us.
OpenOffice is a free program that has many of the same features as
Microsoft Office, and it can "save as" to several formats that are
compatible with Microsoft Office. You can download OpenOffice from
http://www.openoffice.org .
