Get doc file without automatic downloading browser

Hi folks,

I am using Aps.net core. Here is my sample code:

public FileStreamResult DownloadPoliceReport([FromRoute] int id)
{
    var getFile = _context........;
    MemoryStream ms = new MemoryStream(getFile.Data);
    return new FileStreamResult(ms, getFile.ContentType);
}

This code seem ok.

I want to avoid automatic downloading in browser if i get doc file in Iframe.

Any idea?

I am waiting your response.
Thanks in advance!