Enumerations

Excel.Constants

Excel has many built-in constants that are referred to as intrinsic constants.
In addition to all the enumerations Excel also contains some global constants.
These can be accessed in two ways.

Excel.xlRight 
xlRight 

Different to Word

Word does not have any global constants, everything comes from an enumeration.
In Word the approach taken is that all the miscellaneous constants have been put into their own enumeration called "wdConstants".
This is different to Excel.
In Excel the following two items exist but they are not enumerations for miscellaneous constants, they are infact just Global constants themselves.

Excel.xlConstant
Used for defining SQL/Query parameters.

Excel.xlConstant    // value 1 

Excel.xlConstants
Used for selecting hardcoded text/numbers (e.g., SpecialCells(xlCellTypeConstants, xlConstants)).

Excel.xlConstants   // value 2 

Using Enumerations

These can be accessed in three different ways.

Excel.XlChartType.xlPie 
Excel.xlPie 
xlPie 

Full List of the Miscellaneous Global Constants