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

namespace HelloWorld
{
class Program
{
static void Main(string[] args)
{
// Create new Spreadsheet
Spreadsheet document = new Spreadsheet("Data.xls");

// Get worksheet by name
Worksheet worksheet = document.Workbook.Worksheets.ByName("Sheet1");

// Set new worksheet name
worksheet.Name = "Collected Data Sheet";

// Save document
document.SaveAs("RenamedData.xls");

// Close document
document.Close();

// open generated XLS document in default program
Process.Start("RenamedData.xls");
}
}
}

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