How do we insert MS Word allignment in c#?

using Microsoft.Office.Interop.Word;

class Program

{

    static void Main(string[] args)

    {

        DocumentClass document = new DocumentClass();

        object defaultTableBehavior = null, autoFitBehavior = null;

        Table tbl = document.Content.Tables.Add(document.Content, 2, 2, ref defaultTableBehavior,

            ref autoFitBehavior);

        tbl.Rows[2].Cells[2].Range.InsertAfter("This is a test.");

        tbl.Rows[2].Cells[2].Range.ParagraphFormat.SpaceAfter = 0f;

        tbl.Rows[2].Cells.Height = 50f;

        tbl.Range.Rows[2].Cells.VerticalAlignment = WdCellVerticalAlignment.wdCellAlignVerticalBottom;

    }

}

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Sabari Mahesh P M