Posted on: 3/7/2011 1:08:22 AM | Views : 222

Hi,
I am seeing a warning message while opening the excel file, downloaded in the asp.net program.
The error shown is this
"The file you are trying to open, '4113201136_162848.xls', is in a different format than specified by the file extension.
Verify that the file is not corrupted and is from a trusted source before opening the file.Do you want to open the file
now?"
I am trying to download this excel file using the following code Response.Clear(); Response.Buffer = true; Response.AddHeader("content-disposition", "attachment;filename=" + _DownloadableProductFileName); Response.Charset = ""; Response.ContentType = "application/vnd.ms-excel"; StringBuilder sb = new StringBuilder(); sb.Append("Date\tEmployeeId\tEmployeeName\tZone/Locati ...

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