参考

http://foxtable.com/bbs/dispbbs.asp?BoardID=2&ID=65686&skin=0

 不能用 XLS.Book ，这个东西有bug，不能获取时间的。

 必须使用vba，也就是2楼的例子才行。

试试下面代码，如果有问题，请把你的excel文件发上来测试。

\'Syscmd.Table.QuickMerge()
Dim dlg As New OpenFileDialog \'定义一个新的OpenFileDialog
dlg.Filter= "excel文件|*.xls;*.xlsx" \'设置筛选器
If dlg.ShowDialog = DialogResult.Ok Then \'如果用户单击了确定按钮
    Dim App As New MSExcel.Application
    try
        Dim Wb As MSExcel.WorkBook = App.WorkBooks.Open(dlg.FileName)
        Dim Ws As MSExcel.WorkSheet = Wb.WorkSheets(1)
        Tables("总表").StopRedraw()
        \'注意以下数组中列名称的顺序,必须和Excel表中的列顺序一致
        Dim nms() As String = {"地区","车号","序号","时间","发动机水温(℃)","水上液压油温(℃)","风扇传动油温(℃)","变速箱油温(℃)", _
        "分动箱油温(℃)","油底壳温度(℃)","动力舱内温(℃)","发动机油压(Mpa)","储气瓶I压力(Mpa)","储气瓶II压力(Mpa)", _
        "水上液压油压(Mpa)", "变速箱油压(Mpa)","电流(A)","电压(V)","转速(rpm)","车速(km/h)","中置油箱油量", _
        "车尾油箱油量", "总里程(km)","本次里程(km)","行驶摩托小时(h:m)","总摩托小时(h:m)"}
        \'注意下面的循环变量从1开始,而不是从0开始,因为Excel表的第一行是标题
        Dim rg = ws.UsedRange
        For n As Integer = 2 To rg.Rows.Count
            Dim r As Row = Tables("总表").AddNew()
            Dim ss() As String
            For m As Integer = 0 To nms.Length - 3
                r(nms(m)) = ws.cells(n,m+1).Value
            Next
            r(nms(3)) = ws.cells(n,4).text
            ss = ws.cells(n,nms.Length - 2 + 1).Value.split(":")
            r(nms(nms.Length - 2)) = cdbl(cint(ss(0))*3600 +cint(ss(1))*60)
            ss = ws.cells(n,nms.Length - 1+1).Value.split(":")
            r(nms(nms.Length - 1)) = cdbl(cint(ss(0))*3600 +cint(ss(1))*60)
        Next

        app.quit
        Tables("总表").ResumeRedraw()
    End try
   
End If

 项目和excel文件发上来测试。