using IronXL;
using System.Data 

//Open any Excel document.
WorkBook workbook = WorkBook.Load("test.xls");


// Work with a single WorkSheet.  Can also use workbook.DefaultWorkSheet
WorkSheet sheet = workbook.GetWorkSheet("sheet1");

//Convert the worksheet to System.Data.DataTable
//Boolean parameter sets the first row as column names of your table.
System.Data.DataTable dataTable = sheet.ToDataTable(true);

//The DataTable can populate a DataGrid for example.

//Enumerate by rows or columns first at your preference
foreach (DataRow row in dataTable.Rows)
{
    for (int i = 0; i < dataTable.Columns.Count; i++)
    {
        Console.Write(row[i]);
    }
}

Imports IronXL
Private System As using


' Work with a single WorkSheet.  Can also use workbook.DefaultWorkSheet
Private sheet As WorkSheet = workbook.GetWorkSheet("sheet1")

'Convert the worksheet to System.Data.DataTable
'Boolean parameter sets the first row as column names of your table.
Private dataTable As System.Data.DataTable = sheet.ToDataTable(True)

'The DataTable can populate a DataGrid for example.

'Enumerate by rows or columns first at your preference
For Each row As DataRow In dataTable.Rows
	For i As Integer = 0 To dataTable.Columns.Count - 1
		Console.Write(row(i))
	Next i
Next row