FillRight Method
Fills right from the leftmost cell or cells in the specified range. The contents and formatting of the cell or cells in the leftmost column are copied into the rest of the columns in the range.
expression.FillRight
expression Required. An expression that returns a Range object.
Example
This example fills the range A1:M1 on the active worksheet, based on the contents of cell A1.
Spreadsheet1.ActiveSheet.Range("A1:M1").FillRight