The WksCellFormat object contains the cell format properties of one or more worksheet cells such as the numeric format and the alignment.
The following script demonstrates how the WksCellFormat object is used in reference to the WksRange object.
'Declares GrapherApp as an object
Dim GrapherApp As Object
'Creates an instance of the Grapher Application
'object and assigns it to the variable named "GrapherApp"
Set GrapherApp = CreateObject("Grapher.Application")
'Makes Grapher visible
GrapherApp.Visible = True
'Declares Wks as an object
Dim Wks As Object
'Opens a worksheet document in Grapher and
'assigns it to the variable named "Wks"
Set Wks = GrapherApp.Documents.Open(GrapherApp.Path+"\Samples\bar chart orientations.dat")
'Declares WksRange as an object
Dim WksRange As Object
'Assigns columns A, B, and C to the
'variable named "WksRange"
Set WksRange = Wks.Columns(1, 3)
'Declares WksCellFormat as an object
Dim WksCellFormat As Object
'Assigns the cell format of the range to
'the variable named "WksCellFormat"
Set WksCellFormat = WksRange.Format