Nothing except AppleWorks will open an Appleworks database, and you cannot run AppleWorks on Lion or Mountain Lion. If you still have a Mac capable of running AppleWorks - i.e. Snow Leopard or earlier - you will need to export the database as ASCII text. You can then open it in a spreadsheet or another database program: probably Bento is your best bet - it's fairly basic but it is not expensive and should be able to convert your database data to a usable database (the original formatting can't be carried over, only the data). There's a free trial of Bento available so you can experiment to see if it meets your requirements.