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{
//string filepath = Request["filepath"].ToString();
Response.ContentType = "text/plain";
if (filepath == "" || filepath == null)
{
return;
}
else
{
FileStream fs=null;
BinaryReader br=null;
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
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using System.IO;
using Excel = Microsoft.Office.Interop.Excel;
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