Unity reads Excel files to convert XML format files

using ;
using UnityEngine;
using ;
using ;
using Excel;
using ;
 
/// <summary>
/// Create XML table/// </summary>
public class CreateXML : MonoBehaviour
{
 /// <summary>
 /// Table header /// </summary>
 public const string xmlRoot = "FZW_MASK_XML_TABLE";
 
 //Excel name public string ExcelPathName;
 
 //xml file path; private string Path;
 //Table file name public string xmlName = "";
 //Table name public string xmlTabeName = "XMLTABLE";
 
 //First line field private string[] tableTop;
 
 //Table List private List<string[]> tableList=new List<string[]>();
 
 
 private void Awake()
 {
  //Set the path  Path =  + "/XMLTable/" + xmlName;
 
  //Read Excel  ReadExcel(ExcelPathName);
 }
 
 
 /// <summary>
 /// Read Excel /// </summary>
 /// <param name="ExcelPath"></param>
 /// <returns></returns>
 public void ReadExcel(string ExcelPath)
 {
  //excel file location /MaskGame/ReadExcel/excel file name  FileStream stream = ( + "/MaskGame/ReadExcel/" + ExcelPath, , );
  IExcelDataReader excelReader = (stream);
 
  DataSet result = ();
 
  int rows = [0].;//Get the number of rows (how many rows)  int columns = [0].;//Get the number of columns (how many column fields)  
  
  //Initialize field  tableTop = new string[columns];
  
 
  //Save fields  for (int i = 0; i < columns; i++)
  {
   tableTop[i]= [0].Rows[0][i].ToString();
  }
 
  //Read the information from the second line  for (int i = 1; i < rows; i++)
  {
   //Temporary table   string[] table = new string[columns];
   //Assignment table information   for (int j = 0; j < columns; j++)
   {
    string nvalue = [0].Rows[i][j].ToString();
    table[j] = nvalue; 
   }
   //Add to List   (table);
  }
 }
 
 /// <summary>
 /// Create a table /// </summary>
 private void CreateXMLTable()
 {
  //Path error  if ((Path)) return;
 
  //xml object;  XmlDocument xmll = new XmlDocument();
  //Follow the node  XmlElement Root = (xmlRoot);
 
  for (int i = 0; i < ; i++)
  {
   XmlElement xmlElement = (xmlTabeName);
   (tableTop[0], tableList[i][0]);
 
   for (int j = 0; j < -1; j++)
   {
    XmlElement infoElement = (tableTop[j + 1]);
     = tableList[i][j + 1];
    (infoElement);
   }
   (xmlElement);
  }
 
  (Root);
  (Path);
 
 }
 
 void OnGUI()
 {
  if ((new Rect(200, 200, 500, 500), "Create XML table"))
  {
   CreateXMLTable();
   ("Created successfully: " + Path);
  }
  
 }
}