When exporting a raster converted to points to Excel be aware that the amount of information (# of points) can be very high making it hard to manage in Excel.
I suppose that the shapefile you have does not have the X and Y columns yet, right? If that is the case, you could add them as attributes to the shapefile. Open the attribute table of the shapefile and add the fields X and Y as double fields. Right click on the column name and choose calculate geometry. Calculate the geometry property X for field X and Y for Y. You can read more about this here:
ArcGIS Help (10.2, 10.2.1, and 10.2.2)
Next you can use the Table to Excel tool in the conversion toolbox to convert it to an Excel file. More on the tool can be found here:
ArcGIS Help (10.2, 10.2.1, and 10.2.2)
What are you planning to do with the data in Excel?
Kind regards, Xander