Please help me: I can't format Date (dd/mm/yyyy), Text, Number of Columns in Datagridview C# when Export Excel. private void btnExportExcel_Click(object sender, EventArgs e) { if (dgvGF1111.Rows.Count > 0) { Microsoft.Office.Interop.Excel.Application xcelApp = new Microsoft.Office.Interop.Excel.Application(); xcelApp.Application.Workbooks.Add(Type.Missing); for (int i = 1; i < dgvGF1111.Columns.Count + 1; i++) { xcelApp.Cells[1, i] = dgvGF1111.Columns[i - 1].HeaderText; } for (int i = 0; i < dgvGF1111.Rows.Count; i++) { for (int j = 0; j < dgvGF1111.Columns.Count; j++) { if (i < dgvGF1111.Rows.Count) { xcelApp.Cells[i + 2, j + 1] = dgvGF1111.Rows[i].Cells[j].Value.ToString(); //xcelApp.Cells[i+2, 3] = Convert.ToDateTime(dgvGF1111.Rows[2].Cells[3].Value); } } } xcelApp.Columns.AutoFit(); xcelApp.Visible = true; } } What I have tried: Format Date, Text, number,.... when Export Excel in Datagridview C#
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