主题：[求助]怎么用程序一次导入多个Excel文件，并汇总

Dim dlg As New OpenFileDialog
dlg.Filter = "Excel文件|*.xlsx"
dlg.MultiSelect = True '允许选择多个文件
If dlg.ShowDialog =DialogResult.OK Then
    For Each fl As String In dlg.FileNames
        Dim mg As New Merger
        mg.SourcePath = fl
        mg.Format = "Excel"
        mg.SourceTableName = "订单$"
        mg.DataTableName = "订单"
        mg.Merge()
    Next
End If