1、在编辑代码前，需要在vs程序中引入Excel库。可直接通过Nuget搜索安装。可参考如下步骤：
2、程序中完成安装效果如图：
3、C#：
using Spire.Xls;
namespace ExcelToOFD
{
class Program
{
static void Main(string[] args)
{
Workbook workbook = new Workbook();
workbook.LoadFromFile("test.xlsx");
workbook.SaveToFile("ToOFD.ofd", FileFormat.OFD);
System.Diagnostics.Process.Start("ToOFD.ofd");
}
}
}
4、vb.net :
Imports Spire.Xls
Namespace ExcelToOFD
Class Program
Private Shared Sub Main(args As String())
Dim workbook As New Workbook()
workbook.LoadFromFile("test.xlsx")
workbook.SaveToFile("ToOFD.ofd", FileFormat.OFD)
System.Diagnostics.Process.Start("ToOFD.ofd")
End Sub
End Class
End Namespace