Question

我正在尝试将excel文件下载到本地系统中的位置，但在打开文件时，我收到错误：

文件格式或扩展名不匹配。

虽然后端的文件具有相同的扩展名，但我收到错误 PFB代码：

string ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.ContentType = ContentType;
Response.AppendHeader("Content-Disposition", "attachment; filename="+downloadedFileName);


downloadedFileName= "Myfile.xlsx"

Answer 1

它将保存为details.xls

Response.ClearContent();
 Response.Buffer = true;
   Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Details.xls"));
    Response.ContentType = "application/ms-excel";

Answer 2

您遇到此错误，因为您没有使用Response.TransmitFile()。你的代码应该是：

string ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.ContentType = ContentType;
Response.AppendHeader("Content-Disposition", "attachment; filename="+downloadedFileName);
Response.TransmitFile(FilePath); // full path here

下载的excel文件无法打开

2 个答案: