Server code to accept file uploaded from intel XDK

Question 1

In ASP.net server side use webservice receive in byte format and save that as you want.

Code sample refrence link http://www.codeproject.com/Articles/22985/Upload-Any-File-Type-through-a-Web-Service

[WebMethod]

    public string UploadFile(byte[] f, string fileName)
    {
        // the byte array argument contains the content of the file
        // the string argument contains the name and extension
        // of the file passed in the byte array
        try
        {
            // instance a memory stream and pass the
            // byte array to its constructor
            MemoryStream ms = new MemoryStream(f);

            // instance a filestream pointing to the
            // storage folder, use the original file name
            // to name the resulting file
            FileStream fs = new FileStream
                (System.Web.Hosting.HostingEnvironment.MapPath
                ("~/TransientStorage/") +
                fileName, FileMode.Create);

            // write the memory stream containing the original
            // file as a byte array to the filestream
            ms.WriteTo(fs);

            // clean up
            ms.Close();
            fs.Close();
            fs.Dispose();

            // return OK if we made it this far
            return "OK";
        }
        catch (Exception ex)
        {
            // return the error message if the operation fails
            return ex.Message.ToString();
        }
    }
}

}