I was disturbed to see you describing Office 2007 as using the "much improved Open XML". In what way is it much improved if I have to save in a different format? Philip Foxe
The old binary formats were proprietary, largely undocumented, bloated and vulnerable to malware exploits. The new Open XML formats are smaller, cleaner, much more robust, more powerful, more programmable and more secure. They have also been published and ratified as an open standard (ECMA-376), which reduces Microsoft's lock-in. When change is for the good, you should embrace it, especially when Microsoft's Compatibility Pack means the upgrade is free. After 20 years, it's time to move on.
