With the Project 2010 client nearing launch, I thought it would be timely to remind everyone who is going to use this fantastic new release that the file format has changed. As such, schedules you create in Project 2010 need to be saved in a previous file version to share with people using Project 2007 and 2003. Luckily Project 2010 makes it really easy to save your schedules in a previous file format.