Ask the person who sent the Project 2007 or later file to save the file first in the Project 2000-2003 file format. Ask the person who sent the Project 2010 file to save the file first in the Project 2000-2003 file format. Upgrade to Project 2003 with SP3, or ask the person who sent the Project 2007 or later file to save the file first in the Project 2000-2003 file format. If you are using Project 2003 without SP3, there is no converter available. Download Microsoft Office 2003 Service Pack 3. If you are using Project 2003 with SP3, project files from Project 2007 can be opened read-only. If you received a Project 2010, Project 2013, or Project 2016 file that you want to open using Project 2007, ask the person who sent the file to first save it to the Project 2007 file format. For example, a project created in Project 2016 can be opened in Project 2010 without saving the project to a different format. Project 2010, Project 2013, and Project 2016 all use the same file format. Which file version are you trying to open? MPP file that was created in a later version of Project? Here's what's available. Project Online Desktop Client Project Professional 2021 Project Standard 2021 Project Professional 2019 Project Standard 2019 Project Professional 2016 Project Standard 2016 Project Professional 2013 Project Standard 2013 Project 2010 Project Standard 2010 Project 2007 Project Standard 2007 More.