c# - 将 Microsoft.Office.Interop.Excel.Application 转换为 byte[]

Question

我正在如下所示的代码中创建一个 excel 文件

 Microsoft.Office.Interop.Excel.Application excelFile = CreateExcelFile();

现在我想将这个 excelFile 转换为 byte[] 而不保存到硬盘。怎么可能？

Answer 1

前段时间遇到过同样的问题。您必须创建一个临时文件，然后将其读入字节数组。

示例代码:

            string tempPath = AppDomain.CurrentDomain.BaseDirectory + DateTime.Now.Hour + DateTime.Now.Minute + DateTime.Now.Second + DateTime.Now.Millisecond + "_temp";//date time added to be sure there are no name conflicts
            workbook.SaveAs(tempPath, workbook.FileFormat);//create temporary file from the workbook
            tempPath = workbook.FullName;//name of the file with path and extension
            workbook.Close();    
            byte[] result = File.ReadAllBytes(tempPath);//change to byte[]

            File.Delete(tempPath);//delete temporary file