Converter for Numbers quickly and easily converts Numbers 1.x (iWork 2008) files to Numbers 2.x (iWork 2009), allowing you to open those older Numbers documents in the latest version of Numbers or iWork. If you try to open a important spreadsheet--maybe some personal finance calculations or a business spreadsheet--you will get the error "This spreadsheet can’t be opened because it is too old". If you do not have "Converter for Numbers" you will need to install iWork ’09 first. This App will save you time and money.
Note: Now requires OS X 10.9 or later