System.Data.SqlClient.SqlException (0x80131904): Invalid column name 'DSI'

This is the excel file I am trying to import.I am getting a strange error on my C# asp.net web solution. When trying to import an excel file to the DB I am getting the error "Invalid column name 'DSI', but this is not a name of a column. 'DSI' is the text for the field not the column name.

My code:

protected void Button1_Click(object sender, EventArgs e)
{
        try
        {
            conn.Open();

            SqlCommand cmddel = new SqlCommand("DELETE FROM VW_EMP_FORN1", conn);
            cmddel.ExecuteNonQuery();
            conn.Close();

            LblDel.Visible = true;
            LblDel.Text = "Dados anteriores apagados!";
            LblDel.ForeColor = System.Drawing.Color.Green;
        }
        catch (Exception ex)
        {
            LblDel.Text = ex.ToString();
            LblDel.ForeColor = System.Drawing.Color.Red;
            LblDel.Visible = true;
        }

        try
        { 
            string CCU_Agregado;
            string EMPRESA;
            string ENTIDADE_NOME;
            string ENTIDADE_CODIGO;
            string CCU_Nome;
            string CCU_Negocio_Refletido;
            string PCO_DES_REFLETIDO;
            string PCO_COD_REFLETIDO;

            string path = Path.GetFileName(FPRL1.FileName);
            path = path.Replace(" ","");
            FPRL1.SaveAs(Server.MapPath("~/excelfolder/") + path);

            string ExcelPath = Server.MapPath("~/excelfolder/") + path;

            OleDbConnection mycon = new OleDbConnection("Provider = Microsoft.Jet.OLEDB.4.0; Data Source = " + ExcelPath + "; Extended Properties=Excel 8.0; Persist Security Info = False");
            //OleDbConnection mycon = new OleDbConnection("Provider = Microsoft.ACE.OLEDB.12.0; Data Source = " + ExcelPath + "; Extended Properties=Excel 8.0; Persist Security Info = False");
            mycon.Open();

            OleDbCommand cmd = new OleDbCommand("select * from [Hoja1$]", mycon);
            OleDbDataReader dr = cmd.ExecuteReader();

            while (dr.Read())
            {
                CCU_Agregado = dr[0].ToString();
                EMPRESA = dr[1].ToString();
                ENTIDADE_NOME = dr[2].ToString();
                ENTIDADE_CODIGO = dr[3].ToString();
                CCU_Nome = dr[4].ToString();
                CCU_Negocio_Refletido = dr[5].ToString();
                PCO_DES_REFLETIDO = dr[6].ToString();
                PCO_COD_REFLETIDO = dr[7].ToString();

                savedata(CCU_Agregado, EMPRESA, ENTIDADE_NOME, ENTIDADE_CODIGO, CCU_Nome, CCU_Negocio_Refletido, PCO_DES_REFLETIDO, PCO_COD_REFLETIDO);

                LblStatus.Visible = true;
                LblStatus.Text = "Excel importado com sucesso para a tabela!";
                LblStatus.ForeColor = System.Drawing.Color.Green;

                try
                {
                    SqlCommand CMDJ = new SqlCommand("RUN_SGP", conn);
                    CMDJ.CommandTimeout = 5000;
                    CMDJ.CommandType = CommandType.StoredProcedure;
                    conn.Close();
                    LblStatus.Visible = true;
                    LblStatus.Text = "Job final corrido com sucesso!";
                    LblStatus.ForeColor = System.Drawing.Color.Green;
                }
                catch (Exception ex)
                {
                    LblJob.Text = ex.ToString();
                    LblJob.ForeColor = System.Drawing.Color.Red;
                    LblJob.Visible = true;
                }
            }
        }
        catch (Exception ex)
        {
            LblStatus.Text = ex.ToString();
            LblStatus.ForeColor = System.Drawing.Color.Red;
            LblStatus.Visible = true;
        }
    }

    private string GetUserIP()
    {
        string ipList = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

        if (!string.IsNullOrEmpty(ipList))
        {
            return ipList.Split(',')[0];
        }

        return Request.ServerVariables["REMOTE_ADDR"];
    }

    private void savedata(string CCU_Agregado1, string EMPRESA1, string ENTIDADE_NOME1, string ENTIDADE_CODIGO1, string CCU_Nome1, string CCU_Negocio_Refletido1, string PCO_DES_REFLETIDO1, string PCO_COD_REFLETIDO1)
    {
        String query = "insert into VW_EMP_FORN1(CCU_Agregado, EMPRESA, ENTIDADE_NOME, ENTIDADE_CODIGO, CCU_Nome, CCU_Negocio_Refletido, PCO_DES_REFLETIDO, PCO_COD_REFLETIDO) values(" + CCU_Agregado1 + ",'" + EMPRESA1 + "','" + ENTIDADE_NOME1 + "','" + ENTIDADE_CODIGO1 + "','" + CCU_Nome1 + "','" + CCU_Negocio_Refletido1 + "','" + PCO_DES_REFLETIDO1 + "','" + PCO_COD_REFLETIDO1 + "')";

        SqlConnection con = new SqlConnection(mainconn);
        con.Open();

        SqlCommand cmd = new SqlCommand();
        cmd.CommandText = query;
        cmd.Connection = con;

        cmd.ExecuteNonQuery();
        conn.Close();
    }
}

I get this error:

System.Data.SqlClient.SqlException (0x80131904): Invalid column name 'DSI'.

at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action1 wrapCloseInAction)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Finance_Parfois.WPAGES.02INTERNAL.TESOURARIA._02TesSGPSaldosAberto.savedata(String CCU_Agregado1, String EMPRESA1, String ENTIDADE_NOME1, String ENTIDADE_CODIGO1, String CCU_Nome1, String CCU_Negocio_Refletido1, String PCO_DES_REFLETIDO1, String PCO_COD_REFLETIDO1) in C:\Users\Ricardo Loureiro\Desktop\Finance_Parfois_SLN_OLD\Finance_Parfois\WPAGES\02INTERNAL\TESOURARIA_\02TesSGPSaldosAberto.aspx.cs:line 142 at Finance_Parfois.WPAGES.02INTERNAL.TESOURARIA._02TesSGPSaldosAberto.Button1_Click(Object sender, EventArgs e) in C:\Users\Ricardo Loureiro\Desktop\Finance_Parfois_SLN_OLD\Finance_Parfois\WPAGES\02INTERNAL\TESOURARIA_\02TesSGPSaldosAberto.aspx.cs:line 94 ClientConnectionId:1f2f9f5a-6e60-4c5f-8800-1e11fc819a86 Error Number:207,State:1,Class:16

Can someone help me coping with this error?

Best regards,

RL