如何在Open XML SDK 2.5for excel中设置Origin Company (作者)？

using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;

string filePath = "你的Excel文件路径";
using (SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Open(filePath, true))
{
    WorkbookPart workbookPart = spreadsheetDocument.WorkbookPart;
    // 获取WorkbookPart对象后续进行操作
}

WorkbookProperties workbookProperties = workbookPart.Workbook.GetFirstChild<WorkbookProperties>();
if (workbookProperties == null)
{
    workbookProperties = new WorkbookProperties();
    workbookPart.Workbook.AppendChild(workbookProperties);
}

workbookProperties.Origin = "你的Origin Company";

spreadsheetDocument.Save();
spreadsheetDocument.Close();