When I try to open an existing numbers file I get a message that I need to get a new update but when I go to the App store it says installed and will not update to the newer version of numbers. What to do?
If you have Mavericks you may be trying to open Numbers 3 files in Numbers '09. One (3) is in your Applications folder the other ('09) is in the iWork'09 folder in Applications. I keep both Apps in my dock.