OpenOffice is great alternative to Microsoft

OpenOffice is great alternative to Microsoft: "Feature-wise, I'd guesstimate that OpenOffice 2.0 is only missing about 5 percent of MS Office's feature set, and nearly every missing feature is a power tool. Which is sort of an all-or-nothing thing: either it's a feature that you've never used and never will, or it's something you absolutely rely on each and every day."