Yeah, that's about 40% of Microsoft's strategy, lock users in with closed-file formats. Make it hell for them to use anything else.

The worst part about it is that it's a damn good strategy. It works because people are far too short-sighted to switch (oh, well I already have word, upgrades only cost this much more, we're a microsoft only company, blah blah blah) and seem to blame everything except their own inaction.

This has and will continue to do sever damage. There are alternatives. There is no excuse to post, or link to, proprietary crud anymore.