客户要求，导出固定格式EXCEL，牵涉到office.excel类的相关操作，记录下：

1)引用Microsoft.Office.Interop.Excel和Microsoft.Office.Interop

2)判断需要提取的列内容各行值是否一致，这里form应用文件和WPF里的DataGridView控件不一样，WPF里是DataGrid控件。

DataGridView控件中，读取单元格内容  DGV.Rows(i).Cells(j).Value.ToString

DataGrid控件中，读取单元格内容 

Dim DT1 As DataRowView = DGV.Items(i)

DT1.Row.ItemArray(j).ToString

3)'写固定表头             Dim range As Excel.Range = appsheet.Range("A1", "J1")             range.Merge()             appsheet.Cells(1, 1) = "XXXXXXXX"             appsheet.Cells(1, 1).font.size = 25             appsheet.Cells(1, 1).HorizontalAlignment = 3   '居中  4居右

4）画线

Dim border As Excel.Border = appsheet.Range("C2", "H2").Borders(Excel.XlBordersIndex.xlEdgeTop)             border.LineStyle = Excel.XlLineStyle.xlContinuous             border.Weight = Excel.XlBorderWeight.xlThick

5)合并提取项目写位置

appsheet.Range("A3", "B3").Merge()             appsheet.Range("C3", "D3").Merge()             appsheet.Range("E3", "F3").Merge()             appsheet.Range("G3", "H3").Merge()             appsheet.Range("I3", "J3").Merge()

6）写提取项目内容（datagridview控件）

            appsheet.Cells(3, 1) = Format(DGV.Rows(1).Cells(15).Value, "yyyy年MM月dd日")             appsheet.Cells(3, 3) = "炉型" + " " + DGV.Rows(1).Cells(2).Value.ToString             appsheet.Cells(3, 5) = "炉次" + " " + DGV.Rows(1).Cells(4).Value.ToString             appsheet.Cells(3, 7) = "规格" + " " + "Ø" + DGV.Rows(1).Cells(6).Value.ToString.Trim + DGV.Rows(1).Cells(5).Value.ToString.Trim + DGV.Rows(1).Cells(7).Value.ToString.Trim             appsheet.Cells(3, 9) = "编号" + "         "

 7）定义行高 列宽

            appsheet.Rows(2).rowHeight = 0.3 / 0.035             appsheet.Rows(3).rowHeight = 0.6 / 0.035

            appsheet.Columns(1).columnwidth = 10             appsheet.Columns(9).columnwidth = 14

8）窗口内容增加网格线

appsheet.Range(appsheet.Cells(4, 1), appsheet.Cells(DGV.RowCount + 4, 10)).Borders.LineStyle = Excel.XlLineStyle.xlContinuous

其他就是写表格内容了，主要记录EXCEL格式相关操作