I agree with Yosoyke. You’re probably targeting the wrong cells. You can try:
ws.Cells["A3"].Style.Numberformat.Format = "yyyy-mm-dd";
ws.Cells["A3"].Formula = "=DATE(2014,10,5)";
I agree with Yosoyke. You’re probably targeting the wrong cells. You can try:
ws.Cells["A3"].Style.Numberformat.Format = "yyyy-mm-dd";
ws.Cells["A3"].Formula = "=DATE(2014,10,5)";