using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using Bytescout.Spreadsheet;

namespace Converting_XLS_to_TXT
{
class Program
{
static void Main(string[] args)
{
// Create new Spreadsheet from SimpleReport.xls file
Spreadsheet document = new Spreadsheet("SimpleReport.xls");

// delete output file if exists already
if (File.Exists("SimpleReport.txt")){
File.Delete("SimpleReport.txt");
}

// save into TXT
document.Workbook.Worksheets[0].SaveAsTXT("SimpleReport.txt");

}
}
}

Download example source code: bytescoutxls_converting_xls_to_txt.zip (8 KB)