I am trying to create a sandboxed webpart to export data from another webpart within the webpart page to Excel.

I tried using the Excel ActiveXObject in a client-side script, but it requires this META tag to be added:

<META HTTP-EQUIV="CONTENT-TYPE" CONTENT="application/vnd.ms-excel">

How can I get this script to work? Alternatively is there another solution?

Note that it is enough if the solution works only in Internet Explorer, but I cannot change the security settings.

1 Answer 1


The metadata mentioned is merely to specify what kind of content the stream has. It is also used when trying to download a file. By example, more is in HTML <meta> http-equiv Attribute.

Use it in the HEAD section of your page, as in:

    <meta http-equiv="Content-Type" content="application/vnd.ms-excel">
    <meta http-equiv="Content-disposition": attachment; filename="file.xls">

In code, however, you use it as such:

    "content-disposition", string.Format("attachment; filename={0}", fileName));
HttpContext.Current.Response.ContentType = "application/ms-excel";
HttpContext.Current.Response.Write("<head><meta http-equiv=Content-Type content=:" + '"' + "text/html; charset=utf-8" + '"' + "></head>");



I am not sure about an alternative just yet. I shall investigate in that direction.

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