Open XML SDK v2.0 删除 20,000 多行 Excel 文件中的第一行时出现性能问题

如何使用 Open XML SDK v2.0 解决删除大量行时的性能问题

csharp
using (SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Open("input.xlsx", true))
{
    WorkbookPart workbookPart = spreadsheetDocument.WorkbookPart;
    WorksheetPart worksheetPart = workbookPart.WorksheetParts.First();
    OpenXmlReader reader = OpenXmlReader.Create(worksheetPart);
    OpenXmlWriter writer = OpenXmlWriter.Create(worksheetPart);
    bool isFirstRow = true;
    while (reader.Read())
    {
        if (reader.ElementType == typeof(Row))
        {
            if (!isFirstRow)
            {
                writer.WriteNode(reader, true);
            }
            isFirstRow = false;
        }
    }
    writer.Close();
    reader.Close();
}