Refer to Microsoft's reference:

http://msdn.microsoft.com/en-us/library/office/ee861528%28v=...

Also, use the Object Browser in the Macro Editor to browse the list of available objects, methods, and properties. If you need more information on a particular object, search MSDN. E.g.,

https://www.google.com/search?q=worksheet+object+site%3Amsdn...