I am trying to download an Excel document to a client browser. I used to use the following, but ContentDisposition.Attachment is no longer valid in .NET Core. I am using .NET Core 6. I’ve just spent a couple of hours try…...NET Core. I am using .NET Core 6. I’ve just spent...3:08am #2 @FireWave , In. NET Core 6, ContentDisposition.Attachment...