Hello All, Few days back, I’ve seen an interesting scenario; If you add a “Style” programmatically, without specifying the number format as anything, it is assumed to be “General”. Something like below is fine .. Imports Excel = Microsoft.Office.Interop.Excel Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click...