Comment Re:I know you slashdotters hate to hear it (Score 1) 316
Indeed. That's why MSOffice is always backwards-compatible with earlier versions.
In general it is compatible - but only in one direction. You can load MSOffice n documents in MSOffice n+1 but not the other way around.
So, you don't lose any of your own data, and your information sources are still valid. Unfortunately, companies who rely on your data now need to upgrade or find another provider. Their backwards compatibility is like a checkvalve, forcing every customer in one direction if they want to stay in the game.