Weather you like it or not, Office 2007 is slowly starting to creep into corporate networks around you. The biggest problem with this change is the totally different file format.
A while back we released a command line utility, and added a feature to our Network Administrator product that could force your users to save in the old format. That way if you have not totally upgraded all of your network yet, you can still open office documents with the older versions. Better yet you won’t get helpdesk calls asking why no one outside the company can read their documents.
The problem I see now is companies that have decided to wait, are now getting more and more documents emailed to them in the new format. To solve this problem, Microsoft has released the Office 2007 Compatibility pack.
It works with Office 2000, XP, and 2003. It allows you to open and save documents in the new format.
I have installed it on computers around the office here, and it works quite well. I recommend it.